I didn't want to head back inside to face my mom, not yet. I opened the door, and called out.

"I'm heading out for a while. Don't know when I'll be back." I heard my mom.

"All right, honey. Have fun. Don't be late for dinner."

"Okay!"

I grabbed my bike and headed out. I wasn't sure where I was going. Nowhere in particular I suppose. Just somewhere else, where I didn't have to look at my mom and remember what she'd seen this morning. No parent should ever have to see their child having sex. It wasn't natural, no matter what I'd written as a command on Master PC.

I wandered around, eventually landing at the theater and remembered there was a movie I wanted to see that Katey didn't. Seemed like the perfect time. I enjoyed myself, and even forgot about what had happened until I walked out of the theater. Deciding to head to one of my friend's houses, I pedaled my way there. My buddy, Alan and I sat around shooting the shit, eating lunch, playing video games, whatever. I was feeling a little better. As it approached dinner time, I rode back home to be greeted with the smell of dinner cooking, my mother's handiwork. She was an amazing cook.

I also heard my father in the family room, watching some football game. I've never been one much for watching sports, but he was an avid fan. It was okay, we had other shared interests. I enjoyed golf, as did my dad. I sucked at it but I loved it. My dad was actually pretty good. In fact that's why he hadn't been home this morning when I got up; He'd hit the links this morning for an early game with friends. I go with him most of the time, but he'd had some friends in from out of town and he wanted to play some golf with them. Plus, I had Katey over, so I passed.

I chatted with my dad a little about my day, interspersed with occasional shouts of derision at the tv. His team wasn't doing well. Mom called us to the table and my dad and I headed over to sit. We ate and talked, though I still had trouble engaging with my mother.

"Food's great, hun," my dad directed to my mother. I agreed.

The rest of the evening went about the same. Heading to bed, my parents bid me good night.

"Don't stay up too late, bud," my dad called.

They went off to bed, and I stayed on the couch. I didn't get up, I just wanted to sit there and think, or zone out, I guess. I heard the shower go on upstairs and blanked it out. Trying to figure out how to change my general command to Master PC was difficult. I thought I'd done it correctly the first time, but had apparently missed some of the implications. I wasn't going to let that happen again. I had to make sure it was parsed correctly.

Suddenly, I heard a sound behind me, a gasp. I spun around to see my mom.

"God, honey, I didn't see you there. What are you doing just sitting on the couch staring at the wall?" I tried to think of something that wouldn't sound stupid.

"Just thinking." Lame.

"Thinking about what?" I was having trouble meeting her gaze and my eyes drifted downward.

"Umm, a logic problem I'm trying to find a solution to." I didn't want to tell her what it was, but I didn't want to lie to her either.

"A logic problem, huh? Sounds interesting." Thinking about her walking into my room this morning as Katey and I had sex wasn't helping the situation.

"I'm trying to address a practical problem with a specific solution. No luck so far." I realized as I was talking, that since I wasn't meeting her eyes as we talked, and my eyes had drifted down, they'd settled on the cleavage her robe was showing me. I was looking at my mom's tits, and she wasn't wearing a bra anymore. I quickly looked away.

I tried to think of something else, anything else to take my mind off the fact that I'd been staring at my mom's tits while thinking about her walking in on Katey and I fucking and cumming. Wasn't working, damn it. Confusion and anxiety were making it hard to think of anything but mom and sex at the moment, and those were two things that didn't go together. At all.

I noticed something else. Dad liked to turn off the heater at night, or at least turn it way down, to keep the heating bills from getting too large during winter. My mom and dad hadn't agreed, and they'd fought a bit before my mother had given in. It was getting cooler in the house, since the heat had been shut off earlier. My mother's robe wasn't thin, but it wasn't thick either. Because of the material it was made from, it was somewhat difficult to tell, but I could see that her nipples were erect.

The realization hit me like a freight train. My mother wasn't just my mom. She was a woman. I'd never thought of her that way before, because, really what kid does. She was just my mom. Except she wasn't. She was a woman, just like my girlfriend. She had wants and needs just like any other woman. She and my father had sex. I'd always known it, academically, but now I knew it instinctively, on an animal level. They'd fucked hard. My dad had thrust his cock into her and cum. He'd twisted her nipples, like I'd done earlier with Katey. He'd fingered her cunt. She had a cunt. My mother had a cunt. It was too much. I shook my head from side to side.

"Honey, are you okay?" My mother looked concerned, worried at me as I tried to assimilate this new knowledge.

"I'm... I'm not sure mom. I just figured something out." I stood and faced her, uncertain as to the future. Looking at her, truly looking and seeing her for the first time, I began to notice the details of her appearance. She stood two or three inches shorter than I did. Her beautiful straight chestnut hair, pulled back in a pony tail. Lovely face, well proportioned. Amber eyes, small nose, small mouth. Narrow chest that made her breasts look larger than they were, probably a 'c' cup. I was surprised to see they didn't sag much, even without a bra. Perhaps a benefit of an active life? Slender arms and legs. A small stomach pooch that she'd never been able to get rid of, presumably an artifact of the three children she'd borne. A generous full ass. She'd probably put on ten pounds since my parent's had been married, but it was all distributed well. She was beautiful. Perhaps I'm biased, but I think others would think so too. I think I appreciated what my father did in her appearance.

"Really, what?" Her face displayed her worry, confusion, puzzlement. I love my mom, and valued honesty. I didn't want to lie to her.

"That you're a woman." I said it, not quite shaking, but not confident either. She got a queer look on her her face, and then suddenly burst out with laughter.

"You just now figured that out? You're supposed to be the smart one of the family, Mark." She continued laughing, completely missing the point of my comment. I guess it was pretty funny though, looking at it from her point of view.

"Mom, I...," I began, not knowing what to do next.

"It's okay honey. I'm sorry I made fun of you." I stared at her beautiful face, trying to figure out where to go from here. She might be a woman, but she was still my mother. I wouldn't do anything to take advantage of her.

Right?

I mean, I had Master PC, but that didn't mean I could do anything I wanted. I was still a good person at heart. I loved Katey. I loved my mom, but not that way. That way was sick, perverted.

On the other hand, I could fulfill my curiosity without going any further, right? I only wanted to see what Master PC would allow. Stepping forward, I pulled my mother to me, and placed my arms around her lower back, hugging her tightly. She returned the hug, her arms going around my shoulders, squeezing me tight.

"I love you, mom," I blurted out, meaning it.

"I love you, too, honey," she returned, as I hugged her tighter for a moment.

Stepping slightly back, my arms still behind her back, I began to slide my right hand up the side of her body. I was tense, waiting to see if the hold Master PC had over her would fade, if she would step back and slap me, or yell at me. I was risking my relationship with her. Was it worth it? I didn't know. Looking at her face as I slid my hand up, I noticed she just had an adoring smile, no sign of any threatening actions or words. This was it. My hand was directly to the right of her left breast as I was looking at her. I moved it, and my fingers lightly touched the side of her breast. I glanced at her face again; no reaction. She looked down at my hand. I placed my entire hand over her left breast, my heart beating a mile a minute. She smiled, and I squeezed, feeling the flesh of her breast give through the fabric of her robe and whatever she was wearing underneath it. I could feel the firmness of her nipple.

"Mom," I spoke again, for the first time in minutes, my voice wavering slightly with the adrenaline coursing through my body, "Would you take off your robe?"

"Of course, honey," she replied. Which, of course she would, because as far as she was concerned, this was normal, enforced by Master PC. Undoing the belt at her waist, she parted the robe and shrugged out of it, a graceful move. She was wearing some sort of shiny fabric, silky, but not see through. A top and a bottom. The bottom was like a pair of shorts, a little shorter than mid-thigh. The top was similar to the shirt that Katey had been wearing earlier; spaghetti straps, though much lower cut. It made sense, since this wasn't something you'd wear outside of the house. The top hung off of her breasts, her nipples clearly visible as points through the top. Her cleavage was revealed to a greater degree. She was beautiful, no doubt, but I wanted, needed to see more. I had already seen more of her body in the past few minutes than I had in my entire life, as she was always a fairly modest dresser.

I looked my mother in the eyes again, the blood crashing, pounding through my head, as I reached down to the bottom of her silky top and slowly pulled it upwards. I realized my cock was as hard as stone. She looked down again, her eyes resting on my hands once more as I pulled it up. I saw her stomach for the first time, the pooch and surrounding flesh covered with old, barely visible stretch marks. It only made her more beautiful to me. Her waist was narrow, flaring outwards to her hips, and flaring much less up to her rib cage. I continued dragging the top upwards, reaching the bottom of her breasts. My eyes were fixed to the mounds, unable to move. The shirt uncovered more, making her areolae and nipples visible to me for the first time.

My breath caught in my throat. The only breasts I'd ever seen in the flesh before were Katey's. These were different. Far larger, softer. Her areolae were darker, a brownish-pink, compared to the pale pink of my girlfriend. Right now, probably in reaction to the air temperature, they were crinkled and the nipples stood forth proudly. The nipples themselves were about as large across as a fat pencil, and out at least half an inch. I stared taking in every detail of my mother's tits. They were incredible. I pulled her shirt off her body, over her head, throwing it onto the robe she'd dropped onto the floor earlier. I continued to stare at her beautiful body. She was naked, except for the silky shorts she wore. Mom's voice startled me.

"Are you done honey? I'm tired, and I'm getting cold." I ignored her, paying attention instead, to the goosebumps that were appearing all over her skin, including her breasts. Guess she was getting cold. I made a decision, then reached out to cup her tits with both hands. God, I was touching my mother's tits. They were cool to the touch, heavy, firm, but pliable. I felt her nipples pressing into my palms. I squeezed, enjoying the feel of her mammaries in my hands.

Moving my hands down and out, I captured her nipples between my thumbs and forefingers. I squeezed and twisted her nipples. It reminded me of what I'd done that morning with Katey. I was mirroring my actions.

"Mmm," my mother sighed. I was surprised. I didn't expect a reaction like that, but I guess it's normal to feel good when someone is playing with your tits. Even if the person doing it is your son, when Master PC tells you the situation was normal. I redoubled my efforts, pulling, squeezing and twisting her nipples harder.

"Ughh, honey... that's starting to get painful." She didn't say it, but I could tell it was starting to get her turned on too. I could see the flush spreading across her chest, her heartbeat increasing, blood flowing to certain body parts. I eased up a bit, and she smiled at me again.

"Sorry, mom."

"It's fine honey, just letting you know."

I pulled my left hand off her right breast and leaned down to take her nipple into my mouth. It was a completely different experience compared to Katey. I sucked my mom's nipple and areola into my mouth, gently teasing it with my tongue. Mom put her left hand on my back and her right hand drew my head forward, pressing my face into her breast. Swirling my tongue around, I played with her nipple.

"Hmm... that's nice," she spoke slowly, enjoying the feelings I was giving her, free of moral considerations. I wasn't free of them, but my libido was overriding my conscience. My dad's voice snapped everything quickly back into focus.

"Honey, are you coming back to bed?" he called out from their room. I rocketed backwards, startled by my father's voice. My father, who I loved. Whose wife I had just abused, whether she knew it or not. My own mother. What the hell was wrong with me? I'd just treated my mother like an object, instead of one of the people I loved most in the world. My conscience came back, in full force, causing me more guilt than anything I'd ever done. My cock quickly deflated. I turned around so I wouldn't be able to see my mother.

"Go, mom, it's okay." She picked up the clothes she'd left piled at her feet.

"Coming!" she called out. She rubbed my shoulder as she passed. "Good night, sweetie."

"Mom," I said quietly, "You should put your clothes back on." She paused and quickly drew the shirt back over her head, and slipped the robe on, fastening the belt, then headed back to bed.