Without a pause, Pat slipped from beneath my covers and greeted her mother with a hug and a cheery, "Merry Christmas, Mom! What are you doing here?"

Debra's eyes shot open even wider upon seeing Pat was nude and hesitated in returning her daughter's embrace, as if afraid to touch Pat's skin. Other than Debra wearing a sweatshirt and track pants versus Pat's nudity, they looked more like sisters than Angie and Pat did. Once Pat ended the hug, Debra demanded, "Answer my question, Pat! What's going on here? Are you committing incest, too?"

Pat grabbed my discarded sweater from the floor and slipped it over her head, barely covering her buttocks, then tossed me my boxer briefs and tshirt. I passed the tee to Angie and she slipped it over her head, while I managed to put my briefs on without exposing myself, then we sat up in the bed, pulling the covers over our legs and waists.

Leaning against my desk, her pussy barely hidden by the sweater, Pat answered, "Mom, I had sex with Derek last night, then we went to sleep."

"And your sister?" Debra asked, pointing at Angie.

Angie answered, "I did not have sex with Pat, if that's what you're implying, Mother. I was down the hallway having sex with Tommy and Jessica while Pat was fucking Derek..."

"Watch your language, young lady!"

"No, Mother, I won't. Fuck is the right word. If I'm old enough to do it, I'm old enough to say it. Besides, you gave up any power to tell me what to do or not to do when you threw me out of your house. Now, you're trespassing in my new home and you still haven't said why."

"The front door wasn't locked..." was Debra's defense.

Angie snorted. "I didn't think you picked the lock. But opening someone's unlocked door without permission is still trespassing. For the last time, answer my question. Why are you here? It's barely 7."

"I... I've never had to spend a Christmas Eve alone and missed you and Pat terribly, even your father. I couldn't sleep and thought I would try to make peace with you and ask you to come for Christmas breakfast with Pat and me. Since she said she would be there at 8:30, I had to see you before then and still have time to get home and cook. Only I find her here."

"You want to make peace, Mom? Start by being honest. You threw me out, claiming it's because I'm bisexual. Dad told me that it's really because you think I'm committing incest with him and you won't believe his denials. For a month, you've refused to take any of my calls, or I would have denied it, too. So, let me be clear. I have not had sex with my father. Just now, you see me in the same bed as Pat and jump to another accusation that I'm having sex with her, instead of simply sharing Derek with her, when you also know Derek and I are in an open relationship, that extends to my involvement with Tommy and Jessica, if you haven't already figured that out. Then, last night, while Dad and I were discussing your accusation against us, Dad told me the full story of what happened with Rachel and Scott. I think you see incest even when it's not happening. But I would think you'd be more careful about who you accuse, after that."

Debra went pale. "That's... that's not fair. I saw Scott and Rachel having sex together. I didn't imagine that. She even admitted afterward that Bonnie is Scott's daughter. It's... it's not my fault he took his life, after I told our parents."

"You're right, that was his choice and it was the wrong one. Still, would it have hurt you to stay quiet?" Angie asked, as she got out of bed and walked around it towards her mother, standing in front of the open door. "Were they really hurting each other, showing each other love that way?"

Angie reached her mother and stepped close, backing her mother into the door, then kissed her full on the lips. Debra started to react to the kiss, before pulling her mouth away, but stayed in Angie's grasp. "Angie! What are you thinking?"

"I'm thinking that if you had a little taste of incest, you might realize it's not quite as sinful as you say. Did that kiss injure you? I think it turned you on, until you told yourself it was wrong - out of habit, not instinct."

"You just got done saying you haven't committed incest with your father and sister," Debra pointed out.

"Because that's the truth. I have not had sex with either of them. What's also true, though, is that I'm not opposed to the idea of it, now that the idea has been discussed because of some other things I don't have permission to reveal. The same is true about having sex with you. If you weren't so vocally opposed to it, I might have tried seducing you. I certainly thought about it, even before you accused Dad and me, as I questioned whether I was attracted to you, once being with Jessica showed me I'm bisexual. But your eyes this morning, watching Pat walk towards you naked, told me a different story than your words." Angie kissed her mother again, with no resistance this time.

I glimpsed Pat licking her lips, but couldn't figure out if it was because she was nervous or turned on by Angie's tactics. I thought confronting Debra this way was risky, myself, but trusted Angie to know her mother's limits and protect our secrets. Debra was the person we were most concerned would find out. But, if Angie could get her mother to accept it all?

"Was it jealousy that made you tell on Rachel and Scott?" Angie asked, delving into her mother's eyes, as Debra shivered. "You wanted Scott to yourself? Or was it Rachel? That's it, isn't it, Mom? You were attracted to Rachel and got upset that she wanted Scott instead of you. So, you informed mainly on him, figuring Grandpa would send him away and you might get your chance to comfort Rachel after he was gone. Except, Scott killed himself, Rachel blamed you for it and, instead of seeking her forgiveness, you've denied what you felt for her then by being vocally anti-gay and anti-incest ever since. Is that about right?"

In the barest whisper, Debra answered, "Yes," as tears fell from her eyes. Angie held her tight as she sobbed, resting her own head against her mother's shoulder and looking towards me, her face reflecting a mix of sorrow and victory.

A minute passed before Debra gathered herself and said, "But, everything bad that happened, happened because of those incestuous desires. Mine, Scott's, Rachel's. If we'd just been normal..."

"Or if your parents were more accepting, or if society was," Angie said. "Scott killing himself was horrible and we can't ask him whether that was because he felt guilty about what he did, guilty about being caught or because he was heartbroken at the prospect of leaving Rachel. I wouldn't consider Bonnie's conception as a bad thing, by itself. But what would have happened, if Grandpa and Grandma had simply accepted that their kids loved each other and chose to help them keep it a secret? Or if you had kept quiet, maybe asked to join in?"

"I don't know, honey. I was raised to believe incest is always bad. It made sense to me to blame those sinful temptations for Scott's death, rather than blame anyone in particular, but I guess I blamed myself, anyway, and tried to cover my motives up."

"You shouldn't blame yourself, Mom," Angie said. "Scott made the decision to end his life, not you. If you can let go of that guilt and blame, I think you actually have an opportunity to reconcile with Aunt Rachel."

"How?"

Angie said, "I've exchanged a few chat messages with Bonnie and she seems interested in reuniting you and Rachel. I doubt she would say that, if Aunt Rachel were opposed to it. First things first, though. Can you kiss me, the way I kissed you, and see how that feels?"

I looked on in amazement as Debra kissed Angie, hesitantly at first and then with growing passion. Pat approached them and started to nuzzle her mom's neck, before I spotted Angie's hand drifting upward to squeeze Debra's breast.

"Ohmigod," Debra panted, when she pulled away from Angie's mouth. She looked my way and said, "Whatever must you think of us, Derek?"

Angie made a small hand-gesture by her thigh, beckoning me to join them.

"I think all three of you look hot," I said, as I swept the covers down, to get out of bed. Debra's eyes jumped to the bulge in my underwear. "Angie and I agree that incest is ethical so long as it's between consenting adults and not abuse. We're also agreed to let each other be intimate with other people, so long as we're honest. I think she wants to share me with you, like she did with Pat."

I walked over to where the three women were standing and whispered into Angie's ear, "Is this your Christmas list, little girl?"

Angie palmed my cock and nodded, before nudging me towards her mom and turning to make out with Pat, their hands roaming quite a bit more, giving me flashes of their pussies under my clothes.

Debra looked at their embrace and back to my almost nude body in front of her and said, "This is happening so fast. I'm nervous, Derek. I've only been with Jake for the last 25 years. Even knowing he's been cheating on me, I've been faithful. And being intimate with my girls? How do I decide whether to do that?"

"I can't answer that for you," I responded, taking her hands in mine. "If you have doubts, then hold back and watch them, see that they are expressing love for each other, that they would also like to express for you. So long as you agree to keep the incest a secret. If not, you should leave now, before you see more than you want."

"I won't tell a soul. Not again. Watching them does sound like the best idea."

"And me?" I asked, raising a hand to kiss the back of her fingers. "Will you let me love you while we watch them?"

"You don't want to join in with them?" she asked, as Angie pulled her tshirt off and reached for the sweater covering Pat.

"Right this moment, I'd rather make love to their mother."

"He's really good, Mom," said Pat. "Maybe if you roleplay that he's your son, it will help you accept things faster. I already did a little brother-sister roleplay with him last night, since he's going to be my brother-in-law. It was fun."

Debra looked back to me and teased, "Do you have a mommy fantasy, Derek?" When I didn't answer her right away, she realized, "You've already been with her, haven't you? Is that what Angie didn't have permission to reveal?"

"I was talking about something else, Mom," Angie answered. I knew Angie was talking about Bridget's reluctance to go public with her links to Jake and Oscar, but couldn't say so.

"That's not a denial, either."

"No, it's not," I said. "Are you just as willing to keep my secrets?"

"Of course, Derek," she said. "I don't need details right now, but I do hope to hear the story at some point. However, if you don't take me to bed soon, I'm going to chicken out."

"We can't have that," I said, drawing her towards the bed as Angie and Pat closed and locked my bedroom door. They were already tumbled into a 69, with Angie on top, before I got Debra undressed. Without the support of her bra, I could see her breasts drooped about an inch, compared to Pat's. Her areolae were smaller than either Angie's or Pat's, with her nipples pointing out further, as I sucked one into my mouth and slipped my fingers along her slick labia. Debra ran her hands through my hair, as I licked from one breast to the other.

"Maybe a spoon position facing them?" I suggested. We arranged ourselves with our feet closer to the foot of the bed, so our heads split the distance between Pat and Angie's, and were close enough for Debra to reach out to touch their bodies, if she chose, which I hoped she would. Nuzzling her neck from behind, I moved my cock between her legs with my right hand while my left wrapped around to caress her nipples. "Ready, Mom?" I asked.

Debra answered by reaching down, positioned my cock and pushed back at me, taking me half-way in. A thrust of my hips drove the rest of my cock into her warm, snug depths. "Oh, fuck, Derek!" she grunted, throwing her left leg back over mine.

We rocked into each other, slowly at first, most of our attention on the lovemaking happening in front of us. Angie and Pat were lapping away at each other, with one hand driving fingers into each other's love hole, while the other hand caressed from place to place, whether butt, breasts, arms, legs, head.

I asked, "Aren't your girls beautiful, together?"

"Hot," was Debra's gasped response, as she was rubbing her clit and seemed close to an orgasm already. I thrust my hips harder and faster, her moans got louder. When I pinched her left nipple, her muscles clenched shut around me and she slammed back at me twice, her abdomen rippling under my hand.

When her climax ended, Debra rolled her shoulders so she could turn her head and pull mine down into a fierce kiss. When it ended, she whispered, "How do I join them?"

I softly answered, "Start by touching their bodies. Move around until you can kiss one of them, tasting the other on her lips. They'll let you in to start licking, trust me."

"I've never done that, before. I wanted to, with Rachel, but..."

"They won't care that you're inexperienced. This is about showing your love, not a proficiency test."

"What are you going to do?" Debra asked.

"Watch the three of you make love together for the first time," I answered. "Until someone pulls me into it. Probably won't take long."

Debra began caressing her daughters, squeezing their breasts at the same time. Gradually, she moved closer to Angie's head. Angie lifted her face from between Pat's legs and turned to give her mother a wet kiss, full of tongue and the taste of Pat's pussy. I couldn't distinguish who was making the moans I heard.

Pat reached over Debra's feet and grasped my cock, pulling me towards her. "I want to taste our mom, bro," she whispered, when I got closer. Continuing the role-play from the night before. Crouching between Angie's thighs, I dipped my cock into Pat's mouth and she sucked Debra's fluids off of me. When she'd apparently gotten her fill, she pulled my cock free and moved it against Angie's opening. Looking up at me between my legs and Angie's, Pat said, "I want to watch you fuck my sister, Derek, while she and Mom lick my pussy. Heh, there's a sentence I never thought I'd say."

Looking along Angie's body, she had made room for Debra between Pat's legs and I could barely hear the murmurs of Angie giving her mother some advice and encouragement. These turned into a squeal as I pushed my cock into her. "Derek's fucking me, Mom!"

Debra looked back and smiled. "You called it, Derek. That didn't take much time at all."

Pat said, "A hard cock like his needs to be used, Mom."

"Like your father's?" Debra asked, drawing gasps from both daughters, as we all ground to a sudden halt. "I don't know why I didn't see it, sooner. Your dad was committing incest, I just identified the wrong daughter. I stopped by Wendy's apartment one day when I was pretty sure Jake was there and I heard sex sounds through the door with two distinct female voices and thought I heard one of them say, 'Daddy.' Why I thought it sounded more like Angie than you, I don't know, until I just heard your voice, muffled between your sister's thighs. When I got here this morning, Angie denied that she had committed incest with you or her father, but you didn't actually deny a thing when I asked if you were committing incest, too. It was you, all along."

"Yes, Mom. Are you mad?" Pat asked. "I didn't like hiding, but we were so sure you'd freak out."

"No, honey, I'm not mad. Criticizing you for the incest part of it is a bit of a moot point right now, after having my tongue in you a moment ago and wanting to feel yours taste me. I do wish we could all have been honest sooner and I hope a divorce is still avoidable. Do you think your dad would let me join in?"

Pat said, "Sexually, I think Dad would love it. I think he fantasizes about having a harem. Whether you might wind up in a poly marriage with Wendy like Derek's parents have with Jilly Tirman is another question. I think Wendy wants to be his wife really badly and would rather see the divorce go forward."

"We can discuss approaching your father, later. I hope I didn't just spoil the mood, everyone. Carry on, I guess." She dipped her head back towards' Pat's pussy and resumed licking it.

Pat and Angie both made eye contact with me and mouthed, "Wow."

Slowly, we got back into our lovemaking and dispelled the shock of Debra realizing the truth. Pat was sucking on one of my balls and stroking Angie's clit, as Angie was thrusting back at me, when Pat came apart beneath her, from what Debra was doing. She let the nut slip from her mouth to scream, "You're making me cum, Mom! Oh, Fucccck!"

"UUnggh! I'm cumming, too!" cried Angie, as I was hammering into her, moments away from my own orgasm. She shook and screamed, almost in tandem with Pat.

"Cumming," I cried, ready to spurt into Angie. Pat had other ideas, pulling my cock out and tilting it towards her mouth, only to have the first shot splatter across her cheek before she could take the head between her lips to get the rest. I collapsed back onto my knees as she sucked out the last dribble.

Pat rolled from beneath Angie and turned to share my load of sperm with Angie and Debra. "Merry Christmas, one and all!" she joked, when they were done swallowing.

"One I'll certainly never forget," Debra said, as she cuddled up between her daughters.

Sitting by Angie's hip, I asked, "Will you stay for breakfast with us, Debra? So we can get everyone on the same page?"

Debra's eyes widened. "You mean everyone who's in the house right now is involved? All seven of you are incestuous?"

I answered, "In the sense that at least one of our lovers is a blood relative, yes. The person with the most is Jessica, with three. Before this morning, Angie was the only one who hadn't committed a criminal level of incest, since she and Tommy are first cousins."

"I thought they were only half first cousins," Debra said. "Through Jake and Sam being half-brothers."

Angie said, "That's the strongest of four links, counting the ones from Bridget. Together, they add up to 15/16ths of a first cousin, although the DNA match was a bit lower than that, about 9%."

"Bridget? The name's somehow familiar, but I thought your father's mother is named Amelia?"

Angie winced. "Dammit, that slipped out. That's the other secret I was supposed to be keeping." Angie summarized Bridget's revelations about how she is Jake's mother, Oscar's half-sister, and Hannah and Rose's cousin, which I won't retell in more detail than that. "Those revelations led to Dad admitting his incest with Pat as well as outing Derek's family to Oscar and Hannah and also resulted in Dad telling Pat and me about Scott and Rachel. So, I guess we owe this morning to one secret tumbling out after another yesterday, so I knew the right questions to ask you about Rachel, after seeing the way you looked at Pat naked."

"Does that make me more related to Tommy, too?" Debra asked.

Angie thought for a few seconds and answered, "No, you and Tommy still have one descent line apiece from your Campbell grandparents. Only Pat and I have the extra lines of descent on both Campbell and Tirman lines, to relate to Tommy four ways. But Bridget being Dad's mother does explain the DNA match that you have with Dad."

"The mystery second cousin match."

"Yup. You and Dad both have Campbell great-grandparents, you through Rose and him through Bridget. That's also why you and I have 52% DNA in common, instead of exactly 50."

"So, what we just did was extra incesty?" Debra joked.

Angie snorted and answered, "If that's a word. Look, it's only a number on a piece of paper to me. What mattered this morning was our love, daughters to mother, sister to sister, but also woman to woman. If I'd been adopted, with zero DNA in common with you, you would still be my Mom and I would love you just the same. We've simply decided that shared DNA shouldn't be a barrier to showing that love physically. It's not like I have to worry about birth control with you and Pat, anyway. If I do sleep with Dad, I'm not going to get pregnant by him."
"You haven't decided to?" Debra asked.

"He hasn't asked or even hinted that he's interested. But I'm not really happy with him right now. After figuring out around Thanksgiving that Derek and I had sex with Marcy, he promised Derek he wouldn't say anything. But he blurted it out yesterday at almost the first opportunity, then acted like he was doing everyone a favor."

Pat added, "He didn't check with me before admitting our involvement, either. We lucked out that everyone there yesterday was involved in incest or at least incest-tolerant, but it could really have fucked everything up."

"Like you thought admitting it to me would," Debra said.

"Well, you did evict Angie just from suspecting she was with Dad and you've expressed a negative opinion about incest many times. I had no reason to think that what just happened was even a possibility. My head's spinning, frankly."

I said, "Angie has a knack for getting people to admit things they resist. She did it with my Dad, getting him to see that my mom and I were attracted to each other and he should stop blocking us from being involved, then seduced him in the process. Without that, my Dad and Mom might still be stalemated and unhappy. I'm glad you have that talent, sweetie."

"What, I'm an incest whisperer, now?" Angie asked, smiling.

"I think it's a talent that is good for more than just that. I'd discuss it more, but I need to pee and I think the family will be up soon. Tommy and I are responsible for breakfast."

I slipped my underwear and tshirt back on and added a pair of sweat pants and my slippers. When I unlocked the door and opened it, Tommy and Jessica were just passing by, on their way downstairs. Their eyes widened when they saw the three women on the bed, still cuddling and kissing, apparently getting ready for another round with each other, as I realized that neither Pat or Angie had licked their mother's pussy yet. While I wanted to watch that, breakfast wouldn't cook itself.

After I closed the door behind me, Jessica whispered, "Is that Angie's mom in there?"

"Yeah, I'll tell you about it while we make Christmas breakfast for everyone. First, I gotta piss, so meet you downstairs?"

~~~~~

When I finished in the bathroom and got downstairs, my parents and Jilly were in the kitchen, sipping on coffee as they watched Tommy get some sausage and bacon started on the griddle. Jessica was setting up a tray of biscuits to go in the oven.

As I started cracking eggs for scrambled eggs and French toast, Dad looked up at me and asked, "Debra's here?"

I answered, "She came here this morning to see Angie and let herself in when she found the door unlocked, only to discover Pat and Angie spooned on opposite sides of me, all of us still naked from last night. To shorten a longer story, Angie intuitively challenged her about her opposition to incest and homosexuality and got Debra to admit that she had been attracted to her sister Rachel and had acted out of jealousy when she informed her parents about Rachel and Scott being lovers, then went into denial about that attraction after Scott's suicide. Things turned sexual quickly after that. Angie and Pat are probably eating her out as round two. Also, she now knows about our incest."

"What the hell?" Dad responded. "You might have led with that, Derek."

"Sorry. After I admitted to being okay with the incest that was about to happen between Debra and her daughters, Pat suggested that Debra roleplay being my mom as well. She asked me if I had a mommy fantasy. I didn't have a quick answer to that and she guessed that I'd already fulfilled the fantasy, so I admitted to it. This was about a minute before I had my cock in her, though, so she didn't ask for more details. I expect she'll want the full story over breakfast, when they're done. Assuming they don't keep at it until noon. My head's still spinning from how fast things turned around."

"Any other secrets leak out?" Mom asked.

"She also knows that it was Pat who was involved with Jake and Wendy and she knows that Bridget is Jake's mom and Oscar's sister. I'm not sure whose intuition is stronger, but I certainly see where Angie got hers."

Jilly said, "At least, we can stop worrying about her reporting anyone to the police, now."

"Yeah," I said. "We'll have to see whether it results in Debra reconciling with Jake. Angie also indicated she'd been in contact with her cousin Bonnie and there's a prospect of Debra reconciling with her sister, too. The door being unlocked this morning could have been a disaster, but instead it seems like a lot of good could come from it."

"A Christmas miracle?" Tommy said.

"Maybe. So long as you don't call me Tiny Tim in some dumb Scrooge analogy."

"If I'd compare you to anyone, it would be Heat Miser."

Mom almost spit coffee from her nose, then asked, "Does that make me Mother Nature, settling a spat between her sons over who she loves more?"

Debra, Angie and Pat came downstairs, dressed for the day, with Debra wearing one of Angie's outfits, around the time we had the food ready, then we took all of it to the dining room. Pat kissed both Tommy and Jessica good morning. I could tell from their reactions that they tasted pussy in each kiss. I wondered whether it was Angie's or Debra's, but she didn't come around to kiss me.

Over food, we had a long conversation about how the incest had started in my family, that I'll omit due to being repetitive.

"So, where do we all go from here?" Debra asked, when we finished.

Mom answered, "I assumed you were planning to reconcile with Jake. We're in the middle of buying a new house with three separate master suites for the seven of us, to correspond to three separate marriages, with Stan, Jilly and I as a polyamorous triad. Were you thinking that you and Pat fit in with us?"

Debra answered, "It certainly seems like Pat is testing the waters about joining with you. But whether she is here or with her father, my choices are to join Jake and Wendy, join with you if you'll have me or be alone."

Pat said, "Mom, I started thinking about a triad with Tommy and Jess because I thought I needed distance from Dad and Wendy to keep you from discovering us. Only to wind up intimate with you and Angie, too, which just means a bigger secret to hide from the public, but not from each other any more. I'm still going to explore that triad, even if that's partly for cover and an excuse to visit Angie and Derek, too. But, spending just a few hours with them last night isn't enough to make that commitment yet. It might prove easier to bounce between the two groups while I try to date as normally as my job allows. I might find a guy who's incest-tolerant. Or a girl, for that matter. Your disapproval was really the only reason I wasn't publicly out as bisexual."

"Sorry, sweetie," Debra said. "This morning showed me I was wrong about a lot of things. Convincing my daughters they couldn't be honest with me about their sexuality, because I wasn't being honest with myself about my own, is a pretty big one."

Jilly said, "Pat, if you're looking for an alternative to dating as cover, consider joining my swing club. Your Dad and Wendy are already joining, but if you mostly attend on different nights, it shouldn't be a problem. Plus, the membership is already more open minded than the average person, so finding an incest-tolerant partner might be easier. You would still have to be careful. We're having a big New Year's Eve Party and I'd love to have both you and Debra as my guests."

Pat looked at Debra, who nodded, then said, "Thanks, Aunt Jilly, we'd like to try that."

Jilly raised one eyebrow, saying, "Aunt Jilly? Where'd that come from? I know Tommy and Derek are used to calling me that from their childhoods, but why are you?"

Pat smirked. "Father's brother's wife equals aunt, doesn't it? Dad and Sam might only be half-brothers and you're Sam's widow, but it still counts, in my mind. Plus, it makes Jess my step-cousin, since being related to each other seems to be in style."

"Oh, god, you're right. You and Angie are my nieces. It slipped my mind because we've been so focused on all of the genetic relationships shifting and somehow I thought I wasn't affected personally because it was Tirman genetics. Does that mean sex between Angie and me has been incest, too?"

Dad answered, "Legally, I don't think so. The law mentions aunts being with nephews of the full or half-blood. You're not blood related to Angie nor is she your nephew. It might be considered taboo enough that you should avoid being intimate with Angie and Pat at the club, though."

Jilly nodded and said, "I was already planning to avoid Tommy and Derek at the club going forward, since I'm stepping more fully into a step-mother role."

I asked, "So, if the acceptable line isn't going to be the legal definition of incest, where should it be? If step-mother is taboo, is step-aunt? I wouldn't think step-cousins should be off-limits. It's your club, so I'll abide by your decision, but I think it needs a logical basis that members at the club will accept, without it making us look suspicious for avoiding more than we need."

Jilly answered, "We've been talking all along about the two generations attending the club on separate nights. It shouldn't be an issue to still keep the generations separate on those nights we're there together, like the New Year's Eve party. Plus, you're going to be Debra's son-in-law, not just her step-nephew."

Tommy asked, "Then, what about my cousin relationships with Angie and Pat? Those are legal, but are they too taboo for the club, too?"

"A while back, I had a polyamorous quad apply to join the club, where two of the members are biological first cousins, unable to marry because their grandfather made that a condition of receiving their inheritances. They're legally married to the other two members of their quad. I checked with the members, who agreed to let them in. But, when they come to the club, it's not to give them a means to have sex with each other, they pair up with other people."

Dad said, "Remember, this is a swing club, not an extension of what goes on here at home. I don't attend to have sex with Marcy or Jilly, although I like watching them with other men, so I tend to stay close to their action, with other members. So, I would recommend the five of you focus on being with the other members of the club and pay less attention to each other, if any."

Jilly continued, "People are already going to comment on Derek's brother and sister being involved. Having the three of you intimate with both Angie and Pat would make just about anyone question whether Derek is avoiding Jess and Angie avoiding Pat. So, I'm going to suggest that brother-in-law and sister-in-law also be off limits, meaning Angie can't be with Tommy and Jess and Derek can't be with Pat. That way, you're more cleanly divided into a twosome and a threesome, without any public mingling."

"That's fair," I said. Tommy agreed.

"I've already been with Angie at the club, though," Jess said.

Jilly asked, "You went into a private room with Larry and Chad, if I remember right? Did you actually have sexual contact with Angie or just have hetero sex in each other's presence?"

"Hetero sex on separate beds," Jessica answered. "I paired with Larry first, then we switched. Seeing how much trouble Angie's first visit caused her just for kissing Marcy where the Cohens saw her, we decided to be extra careful, especially with her dad there, too. Maybe we should have gone to separate rooms."

Jilly said, "I don't think that's damaging, since it doesn't show that you're lovers instead of friends. Don't repeat it any time soon, though. In fact, maybe the best plan would be for you to act surprised to see Pat there, then have Tommy initiate things with her in an open area and have you join in, where there will be plenty of witnesses. Don't betray that you've been together before, so you can treat it like the official start of your triad. Derek and Angie shouldn't be anywhere near you while that's happening, so they can express their own surprise later."

Jessica said, "Smart idea, Mom. Except, we should get Jake and Wendy to sponsor Debra and Pat into the club, instead of you inviting them, if I'm supposed to be surprised. They could share one table, while Angie, Derek, Tommy and I share another across the room."

Jilly added, "Meanwhile, our generation could start to explore things. Debra, I think it's premature to say that you should join us in a quad and I honestly think it would look better for you to reconcile with Jake and Wendy to form a triad with them, instead. Having those two triads swing together is certainly another option, so long as we don't arouse suspicious about our being with the kids or the siblings being with each other."

Debra said, "I agree. I guess our next stop is to see Jake and Wendy, let them know that I'm aware and accepting of the incest and get them onboard for some New Year's Eve play. And still get back to our house before my parents get there. Are you girls ready to back me up with Dad?"

"Of course, Mom," Angie said. She turned to me and said, "Derek, we'll have to put off exchanging our gifts until after I get back. Wish your uncle, aunt and cousins a Merry Christmas from me, if I'm not back before they leave." With that, she kissed me and the three McDougall women got up and left.

"Whew!" Dad exhaled, when he closed the door behind them and quickly locked it. He then turned to me and asked, "Why were both sisters in your bed, again? I thought Pat went upstairs with Tommy and Jess."

I answered, "She and Angie switched places after a while. When we fell asleep, it was just Pat in front of me. It wasn't until Debra woke us up that I realized Angie was lying behind me, without shooing Pat back to Tommy's bed. But, I'm glad she was there, since Debra would have been just as surprised to see Pat with me. It was Angie who prodded Debra to admit being attracted to her own sister and allow for accepting the incest her daughters had not yet engaged in, before pulling her into it, too."

Tommy said, "If we're going to get into some kind of blame game, Dad, who left the front door unlocked for Debra to come in? If she had been forced to use the doorbell, we could have avoided discovery at all."

Mom said, "All right, we're not going to blame anyone for anything. Because, it feels to me like Debra's discovery needed to happen, to give Angie an opening to turn things around with her. Seducing her was more dramatic than I might have expected, but Angie does seem to have that effect on people."

"You think this was fate?" Tommy asked. "Seriously?"

"Why not?" Mom countered. "We've seen so many coincidences lately, most of them pivoting on Angie. They've all broken our way, against the odds."

I asked, "Does that make Angie the fulcrum, though, or just the lifting part of the lever? It seems to me that the real driving force to all of this has been Simon Tirman's cheating, decades ago. Without it, Bridget isn't born, she doesn't wind up involved with Oscar, so Jake, Pat and Angie aren't born, either. Have that affect Oscar's life enough that he doesn't marry Hannah and Sam and Tommy get erased, too. And since Jess and I were apparently both conceived during that foursome you and Dad had with Sam and Jilly, we'd probably be gone, too."

"Pretty dark 'what if' there, Derek," Jess said. "I personally like existing."

"So do I, sis. But even though Sam didn't get anyone pregnant that day, would the foursome have happened without him? Would my parents have even met your mom if she had married anyone else?"

Mom countered, "Well, Simon doesn't link to my incest with Mark or my Dad or the incest between Debra's sister and brother."

"True, but how that past is playing out right now is certainly impacted by his descendants, not just Angie. Maybe the lever analogy is all wrong, but it does seem like there are forces at work keeping us safe. Or maybe we're just imagining that and we shouldn't get overconfident."

Tommy said, "Or we should get even more cautious because a bad roll of the dice is overdue. This morning could have been catastrophic."

Jessica asked, "Who's left to find out?"

Mom answered, "The list of relatives who aren't aware of us is certainly shorter now. Mark's family and Don's, Debra's parents. Mark is probably more favorable, but Debra's parents didn't react well when it was their kids committing incest. Although, that's the reaction we expected from Debra. Beyond that, we're talking about first and second cousins we don't see often, but who might contact us over their own DNA tests."

Jilly said, "Then there are friends, coworkers, people we might swing with, they all have to believe our cover stories about living together. If we start jumping at shadows, though, we might as well give up right now. Is that what you're thinking, Tommy?"

"No, nothing that extreme. But certainly, keeping our front door locked seems a reasonable precaution."

Dad said, "Agreed. At least, the cover story about the new house seemed to hold up with Don's family a couple of days ago. We'll see if they have any fresh suspicions this afternoon."

~~~~~

Based on Angie's later retelling, this is some of what happened at Wendy & Pat's apartment complex:

Debra, Angie and Pat briefly stopped by Pat's apartment so Pat could change clothes. Pat said, "Give me five minutes to smooth the way, then come down to Wendy's apartment."

Once Pat was out her door, Debra looked around and asked Angie, "So, you used this apartment for sex, with Tommy and Jessica? You left that a bit vague earlier."

Angie coughed, before saying, "Yes, Mom. And some hookups with other guys before them. I sure couldn't bring them home to my bedroom at your house. So, I had an agreement with Pat that I could bring guys here, when she traveled, if I cleaned up after. It certainly beat the backseats of a car or a guy's messy dorm or frat room."

"So, how did that turn into threesomes with Jess and Tommy?"

"I think I told you that I met Jess freshman year and realized that our families connected, that we were second cousins, based on thinking that Sam Tirman was her dad and your aunt Hannah was her grandmom, anyway. It was just friendship, at first. Sophomore year, we decided to go to a frat party during Spring Break week and she introduced me to Tommy, who she hadn't seen in several years. As the night wore on, Jess and I realized we both wanted to have sex with him, so we agreed to share, if he was willing and he was. So, I brought them here."

"And becoming Jess's lover?" Debra asked.

"That didn't happen right away. At first, we focused on sharing Tommy. It was our fourth time together before I admitted being attracted to her and wanting to try being more physical with each other. She was more than ready. But, it was initially a way for us to pass the time after Tommy's orgasms and get him revved up again. Love between us developed more slowly."

"Why did the three of you keep it secret?"

"Mostly, it was Tommy and Jess wanting to keep it a secret because they weren't sure why their parents were estranged. When they learned that their parents used to swing together, that raised the fear that they might actually share fathers, which is why they took the same DNA tests Dad did. You know already how those revealed that Dad is Oscar's son, but not matching to Tommy meant Jess is Stan's daughter. They still didn't want their parents to know about the relationship, which is why we asked you to keep quiet about them being a couple."

"When what you were really hiding was being a trio," Debra said.

"And I didn't want to admit to being bi. But, it also had to do with the incest in Tommy's family, that Jess learned about from her mom around that time. As they said this morning, Stan promised Marcy exclusivity in exchange for Marcy not seducing her sons. Tommy and Jess had just come to terms with incest as it might apply to them as possible siblings and it had me thinking about whether I would become attracted to you, Pat or Dad as I was discovering my bisexuality. Tommy realized that his parents were increasingly unhappy with their stalemate, yet thought that confronting his parents about it directly would backfire, so he wanted to wait for their agreement to self-destruct. Instead, I wound up being the one who talked Stan into ending it, by pointing out how much Derek was attracted to Marcy."
"So, why switch brothers?"

Angie took in and exhaled a breath. "I had only been with Jess in the context of being with Tommy and he was headed to Chicago. I was going to be in the internship with Derek, so Tommy figured he would be attracted to me, due to my resemblance to his mom. Tommy encouraged me to say yes if Derek asked me out, thinking that it would be another piece of evidence that Derek is attracted to Marcy and as much pressure on his parents' pact as we could afford. I fell in love with Derek and the night he came home two days before Thanksgiving, I pushed Stan about Derek's attraction. Tommy and Jess intended to reveal the DNA results and their relationship on Thanksgiving Day. I wound up in a foursome with Derek, Stan and Marcy that night, then Stan reunited with Jilly the next day and had sex with Jess, not knowing she was his daughter, then the day after that was Thanksgiving. All the secrets were revealed and we did manage to get all seven of us into one bed, sort of. I went with Derek, Stan and Marcy to Jilly's club the following night, then the seven of us basically had an orgy on Derek and Tommy's last night before heading home. You throwing me out on that Sunday because of the swing club visit actually kept me from needing any excuses to see Jess, Stan, Marcy and Jilly, so I'm not that mad about it. I would have moved in when Derek graduates, anyway."

Debra chuckled, "So, while you were trying to plot incest in their families, you had no clue about your father and sister?"

"None, until I accidentally walked in on them on Friday in this apartment. If they had been using Wendy's unit, I probably still wouldn't know. If not for that discovery, Dad might have stayed quiet about it yesterday after finding out about Bridget, Pat would have gone home with him and not been in Derek's bed and you, she and I wouldn't have made love this morning. Any regrets about that?"

"About you breaking through my self-denial? No. Plenty about the horrible way I treated you because of it, throwing you out. I'm assuming that if I asked you to move home, you'd say no?"

Angie paused before answering, "Like I said, I don't need an excuse to be with Derek's family without Derek, if I'm living there, in his room. With our plans to buy the new house with its three-family structure, it would be better for me to settle in there before graduation rather than live with you for another semester and move a second time once Derek's graduated. We have to see where things wind up today, anyway. It could be that Dad, Wendy and Pat might all be living with you, if you turn into a foursome, with or without my involvement as a fifth. Should we head over and start finding that out?"

Angie and Debra walked to Wendy's first floor apartment and rang the bell. Pat opened the door and let them in. As soon as they crossed the threshold, they could hear the sounds of sex coming from the bedroom, whose door was ajar.

Pat said, "They were already at it when I got here. I got Dad's attention and said you would be here in five minutes, and he grunted, 'We'll be done', and kept going. They're not done."

"I want to see," Debra said, walking towards the bedroom. Angie followed closely behind.

Looking through the door, Jake was slapping his hips into Wendy from behind and the two of them grunted and moaned as they approached a mutual climax. Wendy's breasts swayed beneath her, as she pushed back into Jake's thrusts.

Debra softly moaned at the sight. Angie, looking over her mother's shoulder and seeing her nipples quickly become erect, leaned in and started to nuzzle her mom's neck, as she reached her hands around and squeezed both breasts. Spotting this, Pat approached and began undressing Debra, joined by Angie.

"Fuck now, talk later, I guess," Pat muttered.

No sooner was Debra naked than she joined Jake and Wendy on the bed, sliding right under Wendy's body into a 69. Neither of them noticed that this was Debra joining them, instead of Pat, until a naked Pat knelt behind Jake and started rubbing her breasts along his back while she reached around and tweaked his nipples. Angie knelt beside Wendy's torso and leaned in and kissed her dad firmly on the mouth, adding her tongue into their first lover's kiss.

Jake jerked his head back and focused his eyes, looked at Angie from head to knees, turned to look at Pat, who grinned, then looked down between thrusts to make eye contact with Debra, as Debra's tongue was pressing into his shaft where it entered Wendy. "Ohmigawd! Am I dreaming? Oh, fuck! I'm gonna cum, girls! Ohgawd, fuck, fuccckkk!"

Hearing the word "girls", Wendy realized that she was wasn't licking Pat and raised her head to look behind her and exclaimed, "Debra?!?"

"Yeah, Wen. Cum for me, sis," Debra sputtered, before she sealed her lips over Wendy's engorged clit and sucked softly, flicking the bean with her tongue. Wendy returned her attention to Debra's clit, easing two fingers into Debra's tunnel, as Jake kept driving more bursts of cum deep into her. Thirty seconds later, Wendy shook from head to toe as her orgasm crashed over her and she screamed, "Oh, Deb!!".

As Jake slowed to a stop and withdrew from Debra and sat back to watch his wife eat out his foster sister, Debra pursued his sperm as it dribbled from Wendy's depths. Angie dropped down and swallowed Jake's softening cock in one smooth motion, sucking off his fluids and Wendy's, getting it to spasm one more time and coat her mouth with more cum.

Pat leaned towards Jake's ear and simply whispered, "Mom knows."

"You think so?" Jake asked, looking stunned.

Angie kissed her way up his stomach to his chest, before displaying the cum that was pooled in her mouth, then swallowing it. She said, "We've got a lot to talk about, before some or all of us have to get back to the house before Mom's parents arrive."

~~~~~

Back at home, the rest of us exchanged our gifts. Nothing really worth listing, mostly clothing, some books and gift cards.

When we were done, there was still an hour before Uncle Don's family was due to arrive. Jessica asked me, "Can we risk a quickie?"

"Do we really want to push our luck today?" I countered. "They could show up early."

"Yahtzee, then?"

So, the six of us split into two groups, Tommy, Jess and I and Mom, Dad and Jilly and we played a couple games of Yahtzee in between working on lunch and waiting for Uncle Don.

~~~~~

Jake and Wendy joined Debra, Pat and Angie in going back to the McDougall family house to get their planned Christmas lunch ready before Debra's parents arrived to exchange gifts.

Only, when they arrived and Angie went to let them in, they were accompanied by Debra's sister Rachel and niece Bonnie.

"Aunt Rachel? Oh gawd! Mom is going to flip!" Angie said, hugging them both, followed by her grandparents, Rose and Daniel.

"Flip or flip out?" Rachel asked nervously.

"See for yourself." Turning towards the kitchen, she yelled, "Hey, Mom? Grandma and Grandpa have a surprise for you! C'mere!"

Debra came out of the kitchen and froze for two seconds when she spotted Rachel, then sprinted across the floor and pulled Rachel into a fierce hug, both of them crying.

Bonnie looked on for ten seconds, before she approached and asked, "Can I get in on some of that, Aunt Deb?"

Debra turned and blinked and asked, "Bonnie?" then wrapped her into the embrace.

Angie looked towards her grandparents and, before she could ask for an explanation, Rose said, "Rachel called us a couple of days ago, said all she wanted for Christmas was her family back. I wasn't about to say 'no'. I understand that you had a part in that, so thank you, baby."

"You're welcome, Grandma, but it was Bonnie who got in contact with me, first. I just said I thought they'd be welcomed back."

"I never wanted Rachel to leave in the first place," Rose said.

Pat came out of the kitchen next, looking for Debra, spotted her mother hugging two women she intuited were Rachel and Bonnie, based on family resemblance. While thinner in build than Debra, Rachel had very similar facial features, while Bonnie had the same figure and face as her mom, but straight blond hair, and when Bonnie opened her eyes and looked over at Pat and Angie, they were a light cornflower blue that Angie didn't associate with their family, most of them having hazel or brown eyes.

"Hi, you must be Pat," Bonnie said, untangling herself from Rachel and Debra to give Pat a hug. "Can you show me a bathroom? I'm about to frigging burst."

Daniel asked, "Angie, could you help me bring in our Christmas gifts?" and Rose joined them. As Angie closed the front door behind them, she glimpsed her mother and Rachel kiss each other deeply.

'That's working fast, Mom,' Angie thought to herself.

~~~~~

Uncle Don, Aunt Laurie, Chloe and Liz arrived right on time. The subject of the new house did come up, but they were more teasing in tone than suspicious and we all breathed a sigh of relief that maybe we'd actually manage to keep our incest a secret from someone.

Another ordinary gift exchange, then football on the TV dominated most of the afternoon, while Chloe and Liz pestered Jessica about her wedding plans, which really hadn't started, since we didn't know when Tommy was going to move back.

~~~~~

A couple hours later, after lunch and gifts, Bonnie turned to Angie and said, "I need to stretch my legs and get some fresh air. Care to join me, so I don't get lost in your neighborhood?"

As they walked down the street, Angie said, "I'm sure you've heard this before, but except for your hair and eyes, you and your mom nearly look like twins."

"You're aware that Scott is my father, I take it?"

"Yeah, it was actually my dad who told me, just recently."

Bonnie said, "Well, as a result of it, I'm genetically closer to Mom than anyone else is, even Aunt Debra, Grandma or Grandpa. I'm both her daughter and her niece, after all. That places me about half-way between being her daughter and being her identical twin."

"Does that make you genetically more like a daughter to Grandma and Grandpa?"

Bonnie explained, "Yes and no. Being a double-granddaughter is kind of unique, because how their DNA is distributed in me is quite different from their children. Let me try to explain. DNA molecules consist of pairs of alleles, okay? Two possible values for a gene, mediated by dominant versus recessive expression. The alleles get split to produce sperm and eggs, then those combine in fertilization to produce a new pairing in the child. Based on a 50-50 chance of inheritance, one allele represents a maternal grandparent and one a paternal, but not all four grandparents at once. It's the combination of all of the genes that cause grandparents to be represented in 25% of the total. Okay?"

"Following you so far," Angie said. "We've done DNA testing ourselves, to identify my dad's father."

"Cool. Because my parents are full siblings, I only have two grandparents, not four. So, Rose and Daniel can be either maternal or paternal in that inheritance process or the important part is they can be both at the same time. In half of my allele pairs, one allele comes from each of them, just like their children. In the other half, either both alleles come from Rose or both come from Daniel. Then, in 50% of those, I inherited both alleles that Rose has or both that Daniel has. I imagine that it makes me part clone. In the remaining half, about 25% of my genes, I inherited the same allele twice, once from Mom and again from Dad, on top of others that would already be identical, also known as homozygous. Those extra homozygous genes are what make incest risky, if they are negative recessives. Luckily, I escaped any serious problems. The most obvious signs of an increased number of homozygous genes are my blue eyes, straight hair, attached earlobes and being a lefty. They're all recessive traits, although handedness apparently is a combination of multiple genes, where not just one recessive gene determines it, so I must have received multiple recessives."

"How would that affect the percentages a comparative DNA test would show?"

Bonnie replied, "I've avoided taking one, since it would highlight the incest in my ancestry, which I prefer stays private outside family and a few close friends. However, probability says I should match 75% of my DNA to each of my parents. That amounts to the 50% I got from Mom's egg plus a 50% chance that what I got from Dad matches her, whether or not I inherited the particular gene sequence from her. Or you can look at it as 50% for being her daughter and about 25% for being her niece. To Grandma and Grandpa, 50%, which matches being their grandchild twice, rather than their child."

"So what's your match to my mom and me?" Angie asked.

"Let's see, I'm your mom's niece two ways, that's 25% times two so also 50%. The same percentage as a sister, but not her sister. You're my first cousin two ways, although not a traditional double cousin where we'd share four grandparents, so that's 25%, which is also the same percentage as a half-sister. I would like to think we can be as close as sisters." Bonnie hesitated before whispering, "Maybe closer, if incest really doesn't bother you." She reached over to brush her fingers across Angie's hand but didn't hold it.

Angie flushed, then softly answered, "Wow, Bonnie. I'm not bothered by the incest and I'm really flattered. But, I don't know that I can add another lover right now."

"How many do you have?"

"Six, plus occasional visits to a swing club."

Bonnie furrowed her brow and asked, "Your mom, your dad, Pat, Wendy and who else?"

Angie tried to hide a flinch, before answering, "No, my fiance Derek and his family."

"You're going to deny having sex with your family this morning? Pat already told me about it, when she showed me to the bathroom."

Angie growled in frustration. "Dammit! This family needs to learn to keep incest a secret, before the wrong person hears about it! Arrggghh! Sorry for venting. This morning was the first time I had sex with any of my family closer than my cousin. However, I'm committed to Derek as my life partner and to his family as my primary love circle. My family is separate, so far, although Pat's testing the waters to maybe join us or maybe alternate."

"Pat hinted Derek's family is incestuous, too?"

"Yeah and we keep having people find out. We're a complex mix of relationships, from parent-child to half-siblings to cousin to aunt-by-marriage to step-family to just plain unrelated, but nobody avoids anyone else except the men aren't bisexual." Angie launched into a summary of the Rosetti and Tirman family histories, how she'd gotten involved and how the more recent incest started, that I'll omit here because my readers have heard it before. She ended it with, "So, my Dad, it turns out, is the child of half-siblings. Less homozygous than you, but it does explain a few things. And Bridget being a Campbell also makes you and me third cousins, two ways. Maybe another 1 or 2% common DNA."

"You're right, that is complicated," Bonnie said. "And you said Derek's family are also swingers?"

"It's how Stan, Marcy, Jilly and Sam met and how Tommy and Jessica wound up with the dads they did. Jilly owns a swing club and I've been there twice so far and Dad and Wendy have been there at least once. Mom and Pat are going to join in at their New Year's Eve party, in part to give Pat some cover for not dating much and to position Mom forming a triad with Dad and Wendy. Pat's exploring a triad with Tommy and Jessica, which might shift her into our circle or have her alternating between both. The last couple of days have made things a bit unsettled, shall we say? And suddenly, you and Aunt Rachel are here, possibly stirring things up more, just as my Mom and Dad are reconciling. I'm sorry if that's not a satisfactory answer to your interest."

"Maybe a rain check, then, or an invite to one of these family orgies? Based on this visit, Mom and I are hoping to move back here. If so, we'll have lots more opportunities to see each other."

Angie said, "I know of a nice two-bedroom that's going to be for rent soon. Jilly and the Rosettis plan to rent out their houses when we move into the new one, rather than sell. You would actually be keeping it in the family, based on its connection to Sam."

Bonnie responded, "Hmm. Send us some details and we'll take a look."

Angie and Bonnie walked in silence for a little while, then when she spotted her house ahead, Angie said, "While Grandma can't hear us, you should know that the real reason my mom tattled on your parents years ago was she was jealous. She wanted to be with Rachel, too. I actually got her to admit that this morning and it was like her inhibitions melted away once she did. And based on a kiss I witnessed earlier, that's still what Mom wants."

"Mine, too," Bonnie responded, just as they came back to the house. "Anyway, back to pretending we're an incest-free family for the grandparents."

~~~~~

Soon after, Angie made her exit, to return to our house, about an hour before Don's family left, only giving us a full account of her day once they were gone.

During telling about meeting her aunt and cousin, Angie noticed that Jilly was growing upset and asked, "What's wrong, Aunt Jilly?"

"Rachel. As long as she wasn't an active part of your life, I hoped to avoid telling you this, but now she's back and I think you need to know. She dated my brother Greg, in high school and into their freshman years in college. When she got pregnant, she tried to claim Greg was the father, but he already knew he was infertile, due to blockage in his sperm ducts, similar in effect to a vasectomy. When he proved he couldn't be the father, Rachel wouldn't tell him who actually was and she left town after Greg broke up with her. Now, we know she was having sex with Scott, too, so that's why she couldn't name him. But Greg wound up so heartbroken that he quit college, joined the Army and died in the first Gulf War, all in about five months. My mom's health declined after that. I could blame your aunt for their deaths like she blamed your mom for Scott's. I've tried to let go of that resentment, but I think you should know that I might have trouble being around her."

"I didn't know. Mom said so little about Rachel as I grew up, as it was. Even Dad didn't seem to know that part of the story. If Greg had not known he was infertile, would he have married her, raised Bonnie? She would have been your sister-in-law?"

Jilly answered, "It sure looked like they were headed that way. He was offering to pose as the baby's father, if she would just be honest about who the father was. I'm sure he would have forgiven the incest, but Rachel must have thought he wouldn't. It was her refusal to be honest that ruined his trust in her. Maybe the marriage would have been a happy one and I'd have known Bonnie as my niece, maybe they could have had more children after that, via sperm extraction from Greg's testicles or even a surgical fix to clear the blockage. I do know he would have been an excellent father. One more 'what if' to add to the pile."

"Jilly, we might have one more problem. Your maiden name is Walker, isn't it?"

"Yes. What of it?"

Angie sighed. "That's Bonnie's last name. It has to be what was put down on her birth certificate, right? I thought it was a coincidence when I learned your maiden name and my mom has never indicated that she knows you. But, now that I know Rachel's connection to your brother, I would bet she put Greg's name on the birth certificate as Bonnie's father, after all. Especially if Greg had died by then."

Jilly absorbed that, then said, "Your mom and I didn't know each other in high school, so it's no surprise she doesn't realize who I am. I don't mind Bonnie having Greg's last name, actually. It's probably what I would have done, in Rachel's situation. Giving birth away from here, nobody would have checked and she never made any claim against Greg's estate. In a small way, he lives on through that."
"Yeah, but it means Bonnie still has to act like Greg is her biological father in public. Are you going to back that up by treating her like your niece?"

"Oh. I don't see why not. It's not like she's to blame for anything. Like you said, if Rachel and Greg had gotten married, Bonnie would have grown up as my niece."

Jessica said, "And my cousin."

I asked, "How public was Greg about proving he couldn't be a father? Would people around here remember he was infertile, to undercut Bonnie's claim?"

Jilly said, "Good point. He didn't like talking about it. He only showed the Simpsons his medical diagnosis and her parents seemed stunned, but Rachel refused to say anything. I just realized we need to find out whether Bonnie even tells people that Greg's her Dad or that he was just a fictional name her mom used. Hell, we're not even sure Greg was the first name Rachel used on the form."

"That's easy to find out. I'll just call Bonnie and ask," Angie said, fishing her phone from her purse and dialing. After a few seconds, she said, "Bonnie? It's Angie. Are you able to talk freely? I have a question for you. I know your last name is Walker, but is the father's name on your birth certificate Greg Walker?"

Angie nodded at the apparent yes answer and continued, "Why? Because Jilly Tirman, who I mentioned earlier today, is Greg's sister. A little while ago, she told me that your mom dated Greg in high school and college, tried to name him as your father, but he had a medical condition that made him infertile and they broke up when she wouldn't name your real father. Jilly and Jessica are prepared to act like your family, if you have been telling people your father is Greg Walker all your life. Have you?"

After a long pause, Angie said, "Okay, hon. I'll talk to you later." Angie ended the call, then said, "She's grateful for your offer, Jilly, but she's going to talk to her mom first. Apparently, when Rachel revealed that Scott was her real father, she only told Bonnie that Greg was a friend who died in the war shortly before Bonnie was born, who wouldn't have minded having his name used. No mention of having dated him for years, claiming he was the father or his being infertile. Without Rachel saying so specifically, Bonnie got the impression that Greg might have been gay."

"Ooops," Tommy said. "I bet Rachel wasn't expecting that to bite her on the ass so soon after coming back to Virginia. If at all."

~~~~~

That night, Mom and Jilly asked to make love to me, together, as they were both expecting their periods to start in a day or two. I wound up with them in the master bedroom, while Jessica and Dad took my bedroom and Angie was with Tommy. We double checked that all the doors were locked.

As we got undressed, Jilly said, "Before we start, I want to talk about your concerns about giving me a baby."

I said, "It's really just one, Jilly. I want the child to know what our true relationships are, to know that I'm their biological father, that Tommy is their uncle, that Jess is both sister and aunt, that Mom and Dad are also their grandparents. Put my name down as father on the birth certificate so it's 100% legal, then I will sign my parental rights over to Dad, as if I was a surrogate. When it's the right time, we'll explain everything. We'll have enough secrets as it is, I don't want to lie about this."

Jilly said, "That's fine with me," as the last of her clothes went into the hamper. "This will probably be the last time I have sex with you with the IUD still in place. I'll have it taken out on Wednesday, during my period, then my bleeding ought to be over by the New Year's party, although I won't ovulate for another week after that. If I don't catch in January, I might come up to Baltimore in February, otherwise we can try again over your Spring Break."

Mom said, "Okay, enough logistics, you two. I've been horny ever since hearing about Angie seducing her mom this morning, boosted by Angie telling us what happened at Wendy's apartment and with Bonnie. I need an orgasm, quick."

"Well, pick a position, Mom."

"No, this isn't the time and place for parental deference. Pick what you want."

Jilly said, "Jeez, you two. Telling Derek to pick is still him following your orders, Marcy. You've got to let him take charge on his own and if he prefers you or me to lead, that's fine, too."

"You pick, then," Mom said.

"Okay. We'll start with oral, a triangle on our sides. You suck Derek, he eats me, I eat you and we'll go from there."

We lay on our right sides with my back parallel to the pillows, lifting our left knees. Mom grasped my stiff cock and rubbed a droplet of precum across the glans before she licked it away. As she got me wetter, she started to stroke the shaft. When she took my head into her mouth and sucked hard around it, my toes curled.

I swiped my tongue along Jilly's labia, savoring her taste, still feeling the wonder of being a lover to these two women, one my mother and the other a figurative aunt asking me to father her child. I was horny, but I also wanted to end Christmas Day by showing them my love, appreciating their love for me, the best gifts I'd ever received, wrapped in skin, love and lust rather than paper.

A Merry Christmas had turned into a Merry XXXMas.

Slipping the middle finger of my right hand into Jilly's pussy, I pressed three fingers of my left hand just above her pubic bone. Her clit was just beginning to peek out of its hood. I teased around the hood with my tongue and waited for the nub to protrude further.

Mom was moaning around my shaft as she licked and sucked, not trying to take me into her throat. She was keeping her hand stroking out of sync with the bobs of her mouth, varying her stopping point wherever her lips hit her fingers. It was the best possible combination of blow job and hand job. If I hadn't been focused on Jilly, I might have come already. Mom wasn't the only one who'd been turned on all day long. Starting with needing to walk away from the trio playing in my bed, to imagining Angie, Debra and Pat revealing Debra's turnaround to Jake and Pat, to hearing all that they'd actually done.

Jilly's clit was fully engorged and I could feel her gspot was, as well. I sucked her clitoral hood between my lips and slid the tip of my tongue lightly across her clit.

"Yes, Drew, yes!!" she cried, muffled between Mom's legs. She must have reacted by intensifying her efforts to lick Mom, as her moans grew louder as well.

I wanted to last long enough for them to climax. But, Mom pressing two fingers against my perineum and stroking along the root of my cock made that impossible. "Cumming!" I cried out, as I started to spurt into Mom's mouth.

I did my best to stay coordinated in sucking and licking Jilly and she was the next to scream out, wordlessly, as her tummy rippled under the fingers that were pressing into her, as my finger inside rubbed her gspot from inside.

Before Jilly was done, Mom pulled off of my cock and swallowed what was in her mouth, so she could moan, "Jilly, yes! Oh, fuck, fuck, I'm there, honey! YYYEEEESSSS!!"

Mom and Jilly rolled away from me and into a 69, with Mom on top. I was instantly reminded of Angie and Pat that morning, except for Jilly's red hair. I watched them loving each other for three minutes, softly stroking my still-wet cock until it got hard again.

I moved around behind Mom and slipped my cock into her, over Jilly's mouth. Mom pushed back against me to shove me all the way into her, while Jilly pressed her tongue against my shaft where it entered.

As I steadily stroked in and out of Mom, Jilly grabbed my nutsack and pressed it back, to keep from being smacked in the face. My every push forward tried to pull them from her grasp and her efforts to keep them under control caused her to squeeze them regularly. I grunted a couple of times when she squeezed too hard and she softened her hold.

Mom quickened our pace by pushing back at me and Jilly gave up on controlling my balls and slid out from under Mom's torso, spun around and lay in front of her. Mom resumed licking at Jilly's clit, being bumped forward by me. I watched Jilly's boobs jiggle on her chest as my strokes translated into pushing Mom into her poly-wife. I imagined thrusting my cock into both of them at the same time, which brought on thoughts of loving them both equally. It was the first time that my feelings for Jilly had risen to be on par with Angie and Mom. Jessica, too. If I were forced to choose who I loved most, could I still do it?

The question lodged in the back of my mind as my focus returned to fucking. Mom cried out, "Derek, just a little harder, baby, I'm right there!" I poured more energy into my hips, slapping against Mom's ass, as I felt my nuts bouncing against her.

Mom lay her face against Jilly's groin, panting and moaning. Her right hand reached back to stroke her clit and she went rigid as her orgasm started. Her insides clenched on my cock and she started to shake, moaning my name softly.

I managed to hold off from my own orgasm as I continued pushing in against her grasping resistance. When she collapsed and pulled off of me, I rolled her to the side and approached Jilly, who spread her knees wide for me to enter her in missionary position. "Fill me up, Derek. Call it practice for knocking me up."

She wrapped her legs behind me and pulled me into her until my hips were smashing into hers. Recovered slightly, Mom slid in beside us and started sucking on Jilly's nipple, then turned her head to kiss me, giving me another taste of Jilly's essence.

I only lasted another five minutes, trying to hold out until Jilly came. Mom slipped down to our waists, one hand snaking between our groins to stroke Jilly's clit and the other reaching behind me to squeeze my balls, which were drawing up, ready to spew my seed.

"Fuck, I'm almost there," I managed to pant, just as Jilly shuddered and tightened inside. That pushed me over the edge and I started to shoot into her, my back arching and screaming, "Fuuuccckkk!"

When we'd stopped cumming, I eased back and rolled to my right, landing my head on a pillow. Mom crawled up and lay on Jilly's other side, softly kissing her and then leaning across Jilly to kiss me. Jilly kissed me after that, then said, "What a great way to end the day. I wish it didn't have to end, but Marcy and I both have to work tomorrow. Merry Christmas, both of you."

"I love you both, so much," I said. "Your love and Angie's and Jess's is my best gift this year. Merry Christmas."

~~~~~