It had been a couple weeks since that Friday, when my little sister Rachel squirted in my mouth and rubbed my cum into her chest. Her fluids had tasted so beautiful, and my only regret was that I didn't get to swallow all of her. I'd wanted to see her swallow me too, but seeing her rub my cum into her tits was pretty awesome. I sort of quickly developed a fetish for that, which sucks because it's not exactly a common thing.
Just try and look for it. It's slim pickings, man. And usually, the girl is like, scared to do it. She'll use her fingertips and just sort of move it around over their skin. I can almost never find a girl in porn who just unabashedly rubs cum into their skin like lotion, like I'd seen Rachel do with mine. I guess, though it was pretty obvious from our first encounter when she'd just randomly wanted to make me cum before our mom got back, that my little sister was a slut.
The best part was, I loved my little sister. I Still do. And things hadn't become weird for us after our two previous encounters. If anything, we talked more and felt closer to each other. Lots of days she'd hang out with me in my room, playing video games and watching TV, until she'd get sleepy and would then go off to bed. At this point, our mom would usually have been in bed for 30 minutes to an hour. But still, that was no guarantee of safety, and we kept our hands to ourselves for the most part, except for the occasional wrestling session. During those, I'd usually get a nice ass grab in. She didn't seem to mind, and would sometimes feel around in my boxers for my cock. I'd usually be at least halfway hard at these times, so she didn't have trouble getting a good hold on it. One time my cock popped out of the hole in my boxers by accident, and she gave it a quick single suck before carefully putting it back in.
It just about killed me, not being able to go at it with her right then. But Mom was still home, and whether she was asleep or not, it was too risky.
That was a Wednesday night, almost 3 weeks after our second encounter. Rachel came back to my room late that night and woke me up.
The first thing I remember was looking over at the clock and seeing 3:07 AM. The covers had been thrown off the bed. I started to feel wet kisses on my neck, hot, gasping breaths, and the pressure of a warm body positioned on top of me. I started to say "Rachel, Mom's in the house, you gotta-"
"Shhh," Rachel said to me, "Mom's still asleep. She never gets up this late and she has a bathroom in her room anyway." She kept kissing my neck, moved slowly to my mouth, and started making out with me. I realized later that that was the first time I'd ever kissed my little sister on her mouth. I wanted more, and held her body close to me as we kept kissing and playing with each others' tongues. I wanted to take her clothes off, but realized that she was already naked. My eyes were starting to adjust to the low light. I looked over the side of the bed, and was able to see her panties and t-shirt lying there on the floor. She must have taken them off before crawling into bed with me.
I normally sleep in boxers and nothing else, and that's what I had on that night. "Let me take my boxers off," I told Rachel in between kisses. She grinned and giggled, and lifted herself off of me to give me room to pull my boxers off. I removed them, pulled my little sister back down to me, and kissed her some more as my hard cock began to slide up and down her pussy. Last time, she was mostly hairless. This time, she had what must have been a week's worth of stubble around her vagina, which I could plainly feel as she grinded herself on the underside of my hard dick. It felt interesting, and actually pretty good.
I moved my hands to her tits, and gently pinched and twisted her nipples. She breathed harder and pushed her tongue farther into my mouth. She pulled her mouth away from mine, and repositioned herself to give me more access to her tits. I sucked her nipples and flicked them with my tongue. My little sister's pink nipples.