Let me tell you about how I got to make my own sister Julia pregnant, with my girlfriends encouragement and help. But first I have to tell the life story of my lovely girlfriend Jenny.

Jenny and I got together with simply because I found out that she's the result of incest. Don't get me wrong, she's drop dead gorgeous and a wonderful friend. But if I hadn't learned that she was the product of incest I'd probably never hooked up with her, since before that I didn't think she was "the girl for me".

I thought that she was the kind of good girl that would be disgusted to know that incest is a major turn on for me and that me and my sister often would end up making out when we are alone. Alas we never did more than that before my girlfriend arranged for me to breed my sister. I loved what I got from my sister and realized it was more than most brothers get, so I'm happy my girlfriend got us further.

I had known Jenny as a childhood friend, we had classes together and we got along well. For some reason we never became more than friends, she's a gorgeous lady as I said and I had many nice wet dreams about her but we never got closer than friends. Honestly it probably was since I though she was out of my league I never let her close.

One day I found her alone in the local pub, staring into a bottle which by the looks of her wasn't that nights first one for her. At first I though she'd been stood up, dumped or something like that and since we're friends I felt that the least I could do was see how she was doing. It was obvious she wasn't happy, and at first she tried to pretend nothing of it. But, since she knew I knew her enough to see past that, and she wasn't really in a state to put up a fight about it really. So, she fairly quickly gave in.

"Shit... No, I'm not OK... I'm fucked up... If you only knew you'd be disgusted with me... b...bu..but it's not my fault even..." she was really struggling not to have a break down in the bar. I put my hand on hers.

"Jen, let's go home, we can talk there and you really should be drinking any more tonight."

She was staring to object, but I wouldn't take no for an answer and I didn't like the looks I'd seen some of the others in the bar had shoot her. So, I took her home to her apartment, thinking that she'd be more comfortable talking about things there - and honestly, if she was too drunk and would make a mess... well, her place rather than mine.

"You can tell me anything, I promise I won't tell any any one and trust me if you knew what's in my head YOU would be the one disgusted."

"You're just saying that to be nice... I feel, tainted..." she clearly didn't know how to start telling.

"Jen, I get that it's something difficult for you to say, but just take a deep breath, and try to say it."

She took a deep breath, closed her eyes, exhaled, then looked at me with worry in her eyes. I took her hand and held it firmly, and she closed her eyes again and took a deep breath holding it in long enough for me to start loosing my attention span (which meant I was now looking at her boobies with one eye, her eyes with another so I'd know when to avert my gaze). She exhaled and I snapped my eyes to her face hurriedly, her eyes still closed but I could see tears building up. I knew she was about to tell me the truth.

"My brother's my dad, 'n' he raped mom who got me!" she blurted out so fast I almost missed what she said. She started crying in relief from letting it out.

If I wasn't so turned on by incest, and had read more than the occasional non-consensual incest story I'd probably been floored by hearing it. But honestly, to me it made me look at her in a new light. That she was her own brother's daughter made her more interesting to me. The rape part was something that didn't bother me as much as perhaps it should, anyway it didn't make her any less desirable to me for sure.

"So, you're the product of incest?" I said almost without thinking.

"I know, you must think..." I put a finger on her lips.

"No, I don't think you're tainted, in fact, I think it makes you special to be both the daughter and sister of your own dad. Don't be ashamed of being an incest baby, you're a rare gem."

She was still in tears, but confusion was spreading on her face.

"But, you don't get it! Who on earth would ever want to be with a girl like me!" she clearly hadn't understood what I mean, so I said it in clear words.

"I would Jenny, I would love you to be my girlfriend, knowing that you're the result of incest is a plus for me."

"What? Really? Seriously? You better not be jerking me around, I really couldn't take that right now..."

"Look Jenny, I think incest it hot, and one of the reasons why I never made a move on you is that I though you would think I'm sick for thinking incest is hot..."

"I... I don't know... incest is..."

"Incest is hot," I said just to affirm that I'm serious about all of this.

"But, I've always thought that incest is wrong... and now I find out that... I'm the fucking result of it! My fucking brother is my dad! I've always thought I never had a dad! He's always been there like a father figure, and now I know he literally is my father... fuck... what the fuck do I do?"

She was venting, this is good, she's letting the facts finally sink in it seems. Until now I'm guessing she did her best to wash away the thoughts with alcohol and then hope to wake up and that it was all a bad dream.

"Jen, breathe, and be proud. I get that it must be very confusing for you. But I'm here for you, talk with me. Don't be ashamed, your brother is still your brother and all the positive things he's done for you hasn't gone away. As you said, he's been there for you like a father, and finding out that he really that is should be positive - let's talk about that first and deal with the other part later."

"I honestly don't know what to think... thanks I really need to talk, or I will go insane... I feel like my brain is burning up..."

"The last part's couldn't possibly have anything to do with all those bottles you spoke with before me?" I said trying to lighten the mood with a joke. It did provoke a stifled chuckle from her, you know the kind of laugh that slips through even though you're not really in the mood for jokes.

"Seriously Jen, try not to think of everything at once, focus on letting the fact that your brother is your dad sink it and think about how he's been there for you."

I'm hoping that she'll start seeing all the good things her brother has done in the light of him actually being her father, and that it'll make thinking of her brother as her dad more positive. The part about him raping their mother is something I'm dying to hear the details about, but I knew that I wanted Jenny as my girlfriend and that was my main focus now. Hearing about those details could wait until I've done what I can do make her feel, no, realize how awesome it is that she's the product of incest - of course, if she wants and needs to talk about the rape part I will let her, but now would not be the time to force it.

"Thank you," she said in between sobs, I held her firm and close in a hug which seemed to make her feel more comfortable and I felt that her sobbing was a part of her processing all this, letting it sink in, "I really need you know, please stay with me tonight..." She seemed so vulnerable now, and I reassured her.

"Jen, you're a rare precious gemstone, and I'm not leaving you now, tonight or any night you'll welcome me to your bed."

"You'd fuck me even knowing I'm..."

Apparently she got my hint, I got rock hard thinking about the possibility of getting to sleep with Jenny. Even if she wasn't an incest-kid it would be awesome, but knowing that made me even more desperate to be with her. To enter her and fill her with my cum. Knowing it's a pussy made in her mothers womb as a combination of her egg and her son's cum... Seriously I don't know why, but it's so fucking hot to think about...

"Yes Jenny, I would love to fuck you and your incestuous body. A body you should be proud of - you're a total knock out." I could see desperate need of sexual confirmation grow in her eyes.

"Please, I beg you, I need this, I fucking need the proof..." she was desperately struggling to get out of her clothes and undress me - but being drunk she had hard time, but I quickly joined in to help, "...in..." there's her bra, wow her tits are even better than I imagined, "...side..." she's naked save for her socks and panties that only made it of one of her legs still trapped around the ankle of her other foot. Somehow that's so erotic to see, my shirt's shredded and my pants and boxers down by my feet, "...me."

As she said that last word, I entered Jenny for the first time ever, in that moment she was my incestuous girlfriend. I'm looking into her wide open eyes, and all I could say to her was how I loved her and that my proof would soon be deposited deep inside her.

After which I did my best to last as long as I could, which given how excited I was was not long enough to get her going before I came in her. But I did my best with to finger her while still trying to stay inside her. I really didn't want to leave her warm hot pussy, and finally manged to get her going at which time I was getting hard again and managed to shoot one more load into her as she was milking my dick. She was smiling for the first time this night and mouthed "thank you" before she passed out, probably more from mental exhaustion that being drunk - she had a most serene and relaxed expression on her face. Something told me she believed that everything will be OK with me and that if nothing or no one else, I would be there "despite" her being the product of incest. I hoped she already had begun feeling good about the latter part, if not, I'd work hard to make her.

The next morning I wake up first, my girlfriend is still sleeping looking beautiful and relaxed. I'm thinking about getting up and making us breakfast, but just in-case she'd wake up before I'm back in bed with breakfast and worry where I am I decide to wake her up with a kiss.

"Good morning, how's my incest girl feeling?"

"Hung over, but happy someone still loves me", she said half-awake.

"I'm sure your mom and dad loves you too, I'm gonna fix us some breakfast honey stay put."

She gave me a "you're crazy, but you're right" smile which I can't resist returning with a kiss on those smiling lips of her. She lies back smiling, and I smile even more as I see her boobies come in to view as the bed-sheets doesn't make the trip back along with her, but drops down just below her belly button. I think that she's not objecting to the way I say mom and dad over mom and brother as a good sign she's getting more comfortable with the thought of her brother being her dad.

I make us breakfast and we spend the rest of the morning in her bed talking about how she feels like she might have overreacted a little, which I said was natural, it's a lot to process that she hasn't been without her dad as she'd always thought. She'd been told their dad had died in a car accident after she was born, but in fact he'd died just before her brother was born.

She admitted that she had somehow always had thought of her brother as sort of her dad, since he pretty much did his best to be a father figure for her. It was just that finding out he really was, threw her world on end. Mostly because she didn't think she'd ever be able to find a boyfriend that would accept her as she is, and she couldn't reconcile that her brother, her dad, that had been nothing but good to her had raped their mother and there by given her life. She was not only the product of incest, but also of rape. I told her that it's not strange that she'd feel confused and conflicted over that, and that when she's ready we'll talk about it.

With my constant praise of her incestuous breed, Jenny started feeling pride being a very special girl. She later told me that she was so happy that she had me to help her realize that my brother's daughter is kinda cool and something she started wishing she could tell the world instead of feeling ashamed about.

Within a week she was ready to tell me about the rape of her mother. It wasn't as bad as it might sounded at first, well, yes it was a rape but their mother had forgiven him as soon as she realized that the rape had given her another child which was something she'd though would never happen after her husband died. She realized that her son being the father was as close to her husband doing it as it could get too.

But, getting back to the rape, it was his 21st birthday and all guests had left so it was just him and his mom left in the house. His mom had gotten a little too drunk and passed out in the sofa while they were supposed to be cleaning up together. So he was a bit pissed at her, and being a little drunk he didn't quite think all the way.

After he'd cleaned up the worst mess he said fuck it, I'll let her pick up the rest tomorrow. He thought about just leaving her in the sofa, but though he was a bit angry he still felt that he'd better check in on her so she's breathing or so... Long story short, he ended up carrying her to her room, raped her and since he did think about protection or let alone whether his mom was on the pill (which in his defense isn't something mot sons think about) it lead to him and impregnating her.

---

Jumping ahead in time for a moment, I did get the full story from her dad who was happy to finally have someone he could share the story of how he became the father of his own sister. Since you're reading a this, I'm guessing you'd like to hear those details too.

-

He could see that she was breathing slowly, she had a red dress and high heels one of which looked like it would come undone any time soon. The fabric on one of her shoulders had slid down a little, exposing the black strap of her bra. He guessed from the strap that she probably had a black bra on, which he non-nonchalantly confirmed by letting his eyes follow the strap down her cleavage, a nice lacy black bra it seemed.

His mother always wore stylish clothes, and since it was just the two of them it happened that she walked around in just her bra and panties so it wasn't that much of a deal for him, but he didn't usually see her from this angle.

Her boobies were firmly held in place by her bra. It was a really nice sight that sent a small tingle to his groin, which is probably why he thought that picking off her heels would be a good wait to have plausible deniability for moving her legs to get a peek at her panties to satisfy his curiosity if she wore matching kickers.

He was happily rewarded with another tingle in his groin when he moved her legs around and got her heels off while looking at his mothers crotch that had a pair of black lacy panties that kept him from finding out how she kept her pussy and what kind of pussy she had sent him in to the world from.

As he sat there between his mothers legs, leaning closer in, thinking about the place they joined up, he started smelling his mothers pussy scent and felt that he just had to get a proper taste and see how his cock would fit inside his mother... but the sofa would be so uncomfortable, his bed to small for the both of them so by the elegant process of elimination it was obvious to him that carrying his mom to her bed and having her there would be best course of action for inter-course, and it was also big enough for him to spend the night comfortably.

So, he carried his mom to her bed, got her naked and started licking her pussy. He really liked the taste of his mom, somehow it was so much better than any other girl he'd tasted before. He thought about how they say boy likes their moms cooking the best, and thought his mom had the best cookie between her legs.

After having licked her so she was really wet, so wet that he his face was dripping with his mom's pussy nectar he started thinking that her pussy surely must be wet enough for him to slip into his former 9 month home so he kissed his way up to her mouth and impatiently guided his cock into the place it was created 21 years ago. He though that if licking his mom's pussy was amazing, it was nothing compared to the feeling of her pussy lips kissing the head of his cock, or the feeling of sliding deeper, and deeper and... all the way into his own mom. He felt at home, being there, inside his own mom.

Feeling her pussy all around his cock, he wondered how this must be feeling for her - to once again have her son in her, but this time as a man, a man about to cum. He felt so excited, just being still inside his mom felt so good he almost forgot it would feel even better with a little motion and then to finally explode inside her. Luckily nature made sure he didn't forget, more or less automatically he began moving out and in he didn't last long, he didn't care it felt so amazing to finally cum inside his mom.

He'd fantasized about having sex with her from time to time, but it was nothing like the real deal. He felt his cock soften inside his mom, and he couldn't wait to get hard again - he just had to do it again, and again... he managed to get 4 or 5 loads of incestuous cum inside his mom before he passed out on-top of her with his dick deep in her not counting the times just enjoying the ride with carnal passion.

What he didn't know or have any thought about was that his mom had not been on the pill since his father's accident, thinking that there was no point since there was no man in her life, no one to get her pregnant. On top of that, this night, just happened to be the night she was ovulating so that when her son came inside her, he sent the sperm that would later become their daughter when it found their mothers very fertile egg.

So as mother and son lay passed out together in bed a new, incestuous, life began inside. Once again this womb would be the host to the mix of her egg's DNA and that of her husband, although only half as much of his DNA - making her daughter, which unsurprisingly inherited her good looks.

Then, morning came finding a son still in his mother's bed. Not only that, on top of her with his dick placed at the entrance so that when it awoke and raised to greet another day it would find its way back inside where life had begun, 21 years ago and again mere hours ago.

"MMhmm... Oh, what the... fuck! Oh, no, no, no... fuck..." he awoke hearing his mother cussing and starting to move under him, he was a bit groggy still but clearly felt that his growing morning wood worked it's back back inside the pussy it has spend most of the night inside pumping full of incestuous cum. He almost instinctively held onto her to stay on top and inside.

"Mom? what's the matter?" he said, knowing just what it was and by now quickly having realized from the tone in his mother's frantic voice that this might be the last time he'd be inside his mom, the last time cum in the pussy that feels so good right now.

"Shit... stay still, I think your... your c... is..." despite her words she was herself moving around trying to get out from under him, which only stimulated his cock and further made it grow and nuzzle deeper inside her.

He knew she wouldn't get away unless he let her, and he would, but not before once more feeling the pleasure of cumming in his own mom and this time with her awake and feeling it too. He took command and began rhythmically pounding his mom.

"No, no, don't, I'm... please..." he came quickly and she felt it, "please tell me you didn't just..."

"...cum?" he answered as a question, "Sorry mom, I had to cum... feels so amazing..." he panted in his mother ear.

"You FUCKING had to cum in me? Son, do you have ANY IDEA what you just did?!?" his mom said sounding more panicked than angry.

"Yeah, I took advantage of my own mother..."
He said the latter, not really feeling sorry or guilty, because the feeling of cumming inside his own mom and fill the pussy that he came to life in was the best thing he's ever experienced. It felt so good it couldn't be wrong or unnatural - why else would it be so wonderful a feeling? He only hopped his mom would calm down and that this wouldn't be the last time he would have his mom under him with his softening cock just having filled her with his cum.

"I'm not on the FUCKING PILL! Shit! And it's the worst time to cum in me... and, and, and I'm your MOTHER for fuck's sake!"

She was clearly not happy, by he kept her in place until she calmed down. His cock had popped out a few times, but managed to find it's way back in to the warmth of his mother all the time. Which probably was part of her giving up, realizing there was not point in fighting, the deed was done and her son seemed intent on staying inside her and his cock always seemed to get back inside her no matter what she did.

All while this, her words began to sink in for him. His own mom isn't on the pill, which he simple hadn't had any though about, and that she on top of that was in the prime of her monthly cycle... He felt his cock harden and twitch at the thought that she seemed so certain she'd end up pregnant, and he realized that he just might no longer be a lonely child... He might have used a condom, and maybe just fucked her once had he know. He wasn't sure, but if he wasn't a little drunk he'd probably had chickened out. But, now that it was done, he realized he loved the though of his mom being pregnant with his child, their child, his own sibling.

"Mom, would you keep it?" he asked with sincerity in his voice, something inside him really wanted her to.

"Why do you think I'm panicking? Of course I will! Even if I had no say in making it, and it is incest..."

"If I had known you weren't on the pill I might have been more careful... but mom, honestly hearing you say you're not hesitating to keep our kid, my own sibling, makes me... happy."

"You better be! I have you know you'll have to take responsibility for this."

Now that she'd calmed down it seemed strangely natural for both of them to lie there in her bed, mother and son, naked and a hard cock in a pussy that was far from dry. Not only wet from incestuous cum, but also pussy juice. It had been so long since the last time she had felt a cock convulse inside her, and while it was rape, her pussy ached for more - not with pain but with desire to exercise the muscles whose purpose is to milk a cock and welcome life to the world. That it was her own son was strange, she does love him more than the world and her own life, but he'd just been raping her.

She was worried about getting pregnant, yet at the same time, she's always wanted to have one more child... She found herself with the same mix of fears all mothers have at the prospect of pregnancy, and a sense of maternal pride in thinking about being a mother. She realized she was just like when she was thinking about her first pregnancy, just this time it wasn't planned and it was the baby from then that now was all grown up on top of her that would be the father.

Her mind was a jumble of thoughts, last night she'd had a good time celebrating her son's birthday, she'd gotten a little more drunk than she planned and sure her head was aching some now. She remembers waking up in a dreamy haze... at first thinking she was still dreaming, and that the feeling of a man on top and inside her was just a wet dream, then feeling confused as she smelled the scent of her own son... why would her dream lover smell like... no, wait, it can't be... shit it is... feels good, but, wait stop, maybe he's only passed out on top... no, that must be his cock I'm feeling... in me... has he cum yet?... and I'm not on protection... and... and... she had realized she should be ovulating about now it was then she woke up fully and started panicking about having her son's cock inside her.

Then she had realized that oddly, the first real thoughts in her mind were along the lines of possibly being pregnant by her son and feeling happy and scared about the prospect of giving her son a sibling that he himself has fathered with her. The fact that he'd just taken her, and thus raped her, his own mother and that she had incestuous seeds inside her was somehow more "matter of fact", and he just had basically said "yup, I raped you mom, felt so good I had do cum too" was almost comically non-nonchalant - funnily just like him, never quite thinking all the way when having fun...

She felt the conflict of maternal "yup that's my boy, but I love him" and "he fucking raped me", but realizing with the latter that it was deep down mostly more of a "stupid boy, you should have told me you wanted sex, now I've missed out on the first part..."

She felt herself relaxing feeling a little reassured and smiling as she'd hear him say he felt happy hearing she would keep their baby and began really hoping she'd catch now. She knew how long she and his dad had been trying to have him, so she knew it actually wasn't a sure thing she'd be rocking a baby in her arms once again in 9 months time...

She began wondering if this was a one time thing, or if he'd be willing to keep trying to make a baby with her if it didn't work this time... She found that she was wrapping her legs around her son's waist, knowing her body was starved and pretty much was saying to her brain that "while brain do thinking business, body do feel good body stuff, brain can talk later". Her son responded to her body and once again began moving in and out, fondling her boobies, kissing her neck - it felt so good, how she's been missing this kind of attention...

"Son, mmmm," she realized talking was hard when it felt this good, also realized that she and his dad never really had been speaking with each other during sex, "we, mmm, really are gonna have to talk, mmm, about..." her mind sort of blanking out trying to focus on both sex and talking, "...our relationship and..."

"...can it wait 'till breakfast?" her son answered panting.

"...yes, but I need to know if this it's just sex for you", she said with a hint of uncertainty.

"...at first, but, no... so much more... especially if we're to be parents..." his voice trailed of and this was pretty much all the assurance she needed to know that she will not be alone to raise their kid. Her body and mind was in now in full agreement, she's gonna make sure to end-up pregnant, by her own son none the less!

"Kiss me like we're newly weds son", she said because that's how she felt right now, remembering how she and his dad had had their wedding as she was ovulating in the hope she'd catch way back then...

Her son gave her the best kiss she'd known, and somehow she was certain that one of her son's sperms had already found it's way into one of its mother's egg and that she'd be adding pregnancy test to the shopping list in two weeks and scheduling an doctors appointment a little after that.

They skipped breakfast and almost lunch too, but they eventually got up and got dressed. After eating they talked about their relationship from now on and how they would deal with the pregnancy. They realized that given how life was, they'd move half-way across the country since luckily she had been offered a job which until now she had planned on turning down. Luckily, since she'd expressed little reluctance to move but the company was head hunting her, the company had tried to sweeten the deal by offering higher salary, and lots of other perks and stuff.

They discussed how they'd explain the child, and ended up with that they'd pretend that her husband had died recently, rather than way back, keeping the lie a small as possible. Since when accepting the job she wouldn't actually start for another 4-5 months (due to obligations to her current employer), so it would work to pretend that she'd gotten pregnant before it and it would be sufficiently long time to "come to terms with it" enough to not be strange to start working. And given the circumstances, that she'd want to keep the "last memory of her husband" wouldn't be something her new employer would be able to object to.

They also decided that in time, they would tell the truth to their child. This however also meant that they'd have to keep their incest secret even at home, which was something they both realized would be hard but best for their child. They decided that he'd stay at home, ostensibly to help with his sister, which being true made that the easy part.

---

So, while it was rape the outcome was that mother and son became incestuous lovers and parents of my girlfriend. Jenny told me that while her parents had planned to tell her, and that if they had the chance to do so she might have taken it a whole lot better at first. But the thing is that she'd caught them in the act, so the whole thing was told when she was in quite a shocked state.

I heard later from her dad that they probably should have kept the rape part secret and just said something like "we got drunk, and ended up having sex", but in a rush to explain things when they were caught red-handed, they'd basically just told things the way things were. Jenny had gone home for a surprise visit, and sure there was mutual surprise to say the least.

So, that's pretty much the basics of my girlfriend and how we got together.

But, I'm digressing, this was supposed to be the story about how my girlfriend helped my sister stop second guessing herself every time she and I would make out. And above all, how my girlfriend after having had a "girl talk" with my sister where my sister had expressed how she longed for babies and had said something to the effect of "if only there were more men like my brother, you're so lucky" - which gave her the sweet idea for getting my sister pregnant.

Since by then Jenny had fully embraced the notion of incest as something beautiful and though that "helping it along" was OK, as long as you took responsibility - or in other words, as long as you make sure to help raise your incestuous kids how they come to life is just means to an justifiable end.

--

I've always had a candid and close relationship with my sister, and we've been a little flirty to be honest. We even had periods when we'd "practice" making out with each others, and of course we weren't prudes around each others. Let's just say that I didn't mind tagging along my sister shopping and helping carrying her bags, since it also meant that I'd naturally join her in the changing room when she tried out clothing - naturally I loved when she went bra shopping the most, so that I knew her bra size and knew what kind of sexy bra to buy her as a secret onus gift for her birthday or Xmas wasn't surprising to her.

But when ever I got a girlfriend or was dating a girl, my sister stopped initiating anything. Though, she never said no to snuggling up or the occasionally kiss, or if we were drunk a nice making out session - but she always said "sorry, you've got a girlfriend now, I shouldn't..." to which I always said that it's OK, it's not a crime and we only made out like we used to, and she'd ask me not to tell my girlfriend which I said I wouldn't.

But when I got together with Jenny, I always told her about it, and she was always happy to hear my sister still enjoyed making out with me even if my sister denied it. One day my Jenny said that I should tell my sister that she knows and think it's perfectly OK for my sister to make out with me. Jenny said that she felt it wasn't fair to my sister that she would go about feeling remorse every time we hit it off - when she should feel happy about it. I said that it might be better if she told my sister next time we had a party.

So the next time we had a party Jenny told me to prepare the guestroom where my sister was staying when the last of the guests had left and my sister was helping tidy up as a thanks for letting us stay over night. Jenny later told me that she had walked up to my sister and simply said:

"I don't think there's anything wrong with you making out with your brother."

"Uh... what?" my sister had replied blushing like crazy and looking totally confused.

"Aww, you're so cute blushing like that... but seriously, he's told me every time you've made out and I think it's nice and sweet of you."

My sister had tried to say something.

"Shh..." Jenny hushed my sister and put a finger on her lips, "Don't say anything. I'm his girlfriend, and he's your brother, were not competing over him."

My sister had looked like she was a deer caught in the headlights, still not believing what she was hearing. Jenny said that she'd finish cleaning up and that my sister should go and get some sleep, and not to forget properly kissing her brother good night and thank him for making her bed.

I had just finished fixing her bed when my sister came in to the room blushing.

"Your girlfriend..." I heard on her voice that she wasn't sure what to say, so I figured the best way to make her more comfortable was to hug her and give her a kiss. Which worked, she pretty much melted in my arms, obviously having been all tensed up before.

"Thanks..." she said as I broke the kiss.

"You're welcome sis, you know this means that you don't have to apologize next time we make out?"

She nodded, and I knew she was very tired since she'd been up early today and had had a long drive here and it was late at night now so I gave her a good night kiss and told her to get some sleep.

The next morning she was up bright and early speaking with my girlfriend by the breakfast table, it seemed like everything was back to normal. I gave Jenny a good morning kiss and as I then gave my sister one too she said "aww cute" and took my sister hand and said "isn't that the best way to say good morning?" my sister blushed slightly and smiled like a teenage girl who just had been called out on having a boyfriend, but was a lot more comfortable about it.

From then on things were as they always been with the exception of my sister no longer apologizing when we ended up making out, and we always kissed on the mouth when we were alone or just us and Jenny. Making out with my sister wasn't just when she could blame liquor anymore either, and she was back to taking the initiative when she felt like making out. It was really nice, and Jenny was happy that some tension between them had vanished now, not that they didn't get along before - they were like best friends, but my sister had been a little tense at times (which was when we'd been making out recently). And I think my sister felt the same, and she came over a little more often, even when it was just my girlfriend home which I liked. Knowing that Jenny and sister, the two girls in my life that I love, get along is important to me.

--

One night as me and Jenny were snuggling up in bed she mentioned that she and my sister had been talking earlier that day, and it seems my sister is hearing the ticks of her biological clock and feeling some baby cravings.

"She said that she wished there were more men like you, so she could settle down too... Which gave me the idea that since she's already here more or less every other day, why not let her move in full-time and have your babies?" she said the latter like it was a sure thing that should follow naturally of a sister moving in with her brother and his girlfriend.

"You told her that?" I said, I wouldn't have been that surprised if she had

"No, I wanted to check with you first. I know you love your sister and probably wouldn't deny having thought about breeding her, I know you that much my love. But, since I'm serious about it, and making babies is a bid responsibility. I want to be sure you're OK with taking on the responsibility of raising your sister's babies - and also, keeping both her and me sexually satisfied. Of course I and her will take care of most house hold chores, so I think you'll have time for us both."

"You're the best girlfriend a boy can have Jenny." I kissed her and she purred, "Of course I'd love to have babies with my sister, and if you help out and will share me with her I think it will work."

"Then, that's decided, we'll have your sister pregnant and moving in with us." Jenny was smiling ear to ear, "I could talk with her, but..."

"I know that look, you're up to something Jenny." I already knew she was thinking something along the lines of "kick-starting" the process after next week's masquerade party.

"I'll make sure both she and I wear the same outfit and make sure to lead her to this, our bed to sleep and stay with her until she falls a sleep and then come and get you."

"How do you know it's not her period then?" I said noting that I didn't know when my sister has her period.

"It ended last week, so the masquerade should be right when she's most fertile. Oh and I'll help you get her wet, I've always been curious about how your sister's pussy looks and tastes, so I think I'll have a nibble before fetching you."

That both Jenny and Julia were bi was no surprise to me, and I had always thought it would be awesome if they hooked up some time. I never raised the issue, but I was almost certain that Jenny suspected Julia wasn't spending much time at our place just to meet me since she'd also drop in when she knew only Jenny would be home.

Sure enough Jenny had my sister dressed in exactly the same dress she wore. I had a hard time telling them apart on the party, not that it mattered - no one else could either. I could kiss either of them and everyone else would think I somehow knew who was Jenny of the two, when in fact it was anyone guess until I was close enough to recognize the scent of them and while kissing them I also knew from their touch. It was really fun, I hoped we'd have more masquerades like this.

In perfect time when the last of the guests had left, Jenny came and kissed me on the mouth with a new but most delicious taste on her lips.

"I think she's sleeping rather lightly, so be careful not to wake her too soon honey," she kissed me again and send me off saying "good luck."

I sneaked in to mine and Jenny's bedroom as quietly as I could, I could see that my sister was still wearing the costume Jenny had gotten for them. I saw that her pale blue knickers had been kindly removed by Jenny, and placed on top of the hamper. She'd also spread my sister's legs wide and undone the costume enough to give unhindered access and view to my sister's pussy - which in the dim light looked really nice and glittered with pussy juice. I know my sister isn't a heavy sleeper, but she's not the lightest sleeper either so I think I should be able to get in place without waking her up. I undressed and slowly made my way in to bed, with the tip of my dick finally made contact with my fertile sister's pussy lips - this is the moment of truth...

It feels so good to feel, first the head of my cock, and then all of it, slowly sinking deep in to my own sister's pussy and just as I feel her pussy lips kissing the shaft of their brother's cock the mine start kissing the lips way up higher as I slowly start fucking her. I realize quickly that I'm not going to last long, knowing I'm going to cum inside my own sister when she's ovulating makes me insecure and horny like a virgin.

I think she's about to wake up, and I feel even more excited.

"Wait, wait, no, no, don't... I'm not..." she protests weakly, she's not really fighting back, feels more like when she used to apologize for making out.

"Ssh... I know you're not Jenny sis..." I'm so close to cumming now, any time now...

"No, that's not it, I'm..." I'm about to cum, and she must be sensing it and hurries to say something before I cum, "ugh... not... on..." and she exhales as I'm going as deep as I can, "aawwww..." she must be feeling that I'm cumming, feels like it's a big baby load too, and sure enough she confirms feeling it by asking with a surprisingly calm matter-of-fact-tone, "You just came, didn't you?"
"Yeah, sis, deep in side your pussy, as deep as I could." I'm panting, feeling like I've run a marathon and knowing there is a marathon race that just started in my sister's pussy with the goal being her egg.

"Fuck..." she said, not really sounding mad, more like realizing I knew what I was doing.

"Yeah, I just had to do that with you..." I couldn't resist the joke.

"Ever think about protection?" said more like a statement than a question asked, and I wonder if this is her way of saying she's not on the pill.

"Yup, and honestly, I'm kinda hoping you're not on any thing that would prevent your from catching."

"Woah, really? Guess what, no pill, and my period is..." I can see her doing the maths, "two! two weeks away - something tells me you've done the math already..." she's obviously seeing me smile.

"Yup, will you keep it if I've gotten you pregnant now?" I ask hoping for a positive answer, she pauses for a second before answering, "Depends on whether you'll be able to convince Jenny to let me stay in the guestroom and help me raise it, there's no way I could do it alone..." she says with a tone that hints that she really wants to but doesn't know if she will be allowed to, the kind of "I found this puppy can I keep it"-deal.

"Honey, she's the child of her own brother and mom, she's actually the one that planed this night for us after you told her you wanted to settle down if only there was another one of me..."

"Julia, it's not a guestroom any more, we'll be turning it in to a nursery so... You'll be sharing this room with both of us", Jenny chipped in with a cheerful voice.

"Jenny..." my sister was tearing up, "...thank you..." Jenny came closer and gave my sister a kiss, could still smell my sisters pussy from Jenny's face.

"Julia dear, family is the most important to me, and hearing that you wanted babies and want someone like your brother to father them - I'd say better still would be your actual brother's babies."

Jenny lies down next to us and gently moves a few strands of my sisters hair out of the way and while smiling she tells me to give my sister another load of my incestuous cum where it belongs and to keep going until Julia get an orgasm from her brother. As I'm once again having sex with my sister, Jenny comments on how there's not doubt we look like brother and sister and that she thinks it's so cute seeing us fucking like this. As my sister orgasms Jenny asks me if that's how she looks when we're making love and I reply that the pair of them could pass for sisters which made her laugh and say she thought of Jenny as her sister when she licked her earlier when preparing her for me.

I'm not sure if it was that night, or one of the other nights later, but sure enough, to all of our joy Julia soon announced her first pregnancy, the first of three. Jenny was so proud of her "sister's" babies, and treated them like her own. In a way also like her siblings, because like her, they were the result of incest and she felt so happy to finally be certain that she's not the only girl made by incest - I think that's one of the reasons she was so eager to have me and my sister make babies.

Officially my sister's babies were by an officer deployed out of the country that then died after baby number three, and that she's living with me and Jenny "to make ends meet" - that it means her and Jenny's front ends and her and her brother's is a family matter.

When I say that Jenny treated Julia's babies like her own, this was especially true for the latter two, since by then she too was pregnant and Jenny and Julia even helped feed each others.

If you're wondering who the father of Jenny's babies is, well, of course I felt that if she was so kind to give my sister my babies - what kind of boyfriend would I be if I didn't encourage her to have one by her dad and one by her brother? She just rolled her eyes laughing when I put it like that and said that she'd "ask" her dad and brother which I laughed at.