"Don't be silly, just sleep here, there's plenty of room."
It wasn't really a big deal. We had shared a bed before. Granted, it wasn't since we were little kids, but It wasn't a big deal. I got into bed next to her, and she promptly cuddled up next to me.
After a while of silently watching tv, I felt my eyes getting heavy. I assumed my sister had already fallen asleep, until I felt her hand idly rubbing my stomach. I rolled away from her and closed my eyes, ready to go to sleep. She snuggled up closer to me and continued lightly rubbing my stomach.
Before I realized what was happening, I noticed her hand was venturing further down towards the waistband of my shorts. I didn't think anything of it until I felt her finger tips sliding under it, a little further each time. My body froze, and I didn't know what was happening. Part of me wanted to move away, but I didn't. Her fingers slipping further down with each pass of her hand. I started to panic as I felt my cock start to stiffen and raise upward towards her roaming fingers. I was convinced she wasn't aware of what she was doing, and would freak out when her fingers found my stiffening cock. I pictured her screaming that I was a pervert and throwing me out of her apartment in the middle of the night.
I grew more nervous as her fingers ventured further down, and my cock rose to meet them, but I still didn't move. Finally I felt her nails lightly graze the head of my cock, sending a burning sensation all over my body. I braced myself for the worst, but she still didn't stop. She moved her hand back and forth, lightly grazing my penis with each pass, and moving her hand down a little more at a time, touching more of me little by little. Finally her fingers were concentrated just on the head of my dick, and she gently stroked the soft skin. I was still too scared to move, thinking that she was asleep, but would wake up any moment completely horrified. I felt a little fluid leak from the end of my cock as her fingers glided through it, smearing it all over the tip of my dick with small clicking sounds.
It was driving me crazy, and I knew that if she wasn't awake by now, she would be when I shot my load on her hand, and at this rate, it wouldn't be long. Finally in a move that could only be intentional, her hand gripped my entire penis and began to slide up and down my shaft. She let out a soft sigh, and I held my breath. There was no longer any doubt, my sister was awake, and fully aware that she was jerking me off. Even still, I made no attempt to move.
Finally, in what seemed like a move of frustration, she removed her hand from my cock, and tugged firmly at my shorts, sliding them down to my knees.
"Let's get these out of the way" she whispered, and grabbed my penis with renewed vigor, and slowly and steadily stroked me.
"Much better" She whispered again. I let out a loud gasp, acknowledging for the first time that I was aware of what was happening. There was no turning back now, we both knew exactly what was happening. She continued to stroke me, faster and faster, as my cock continued to leak. She pulled my shoulder with her free hand, nudging me to roll over.
"I want to see you."
I rolled over, and looked in my sister's beautiful eyes as she stroked my cock. Finally I could feel my self getting close, and out of nowhere, she did something completely unexpected. She kissed me full on the lips, slipping her tongue into my mouth. My body stiffened as I shot my load onto her hand, and she moaned in my mouth as she felt my hot fluid pumping on her skin.
She confessed that she always wanted to do that, and let me do whatever I wanted in return.
We spent the rest of the week fucking and sucking in every conceivable way, and I returned to school the following week with fond memories, and a renewed outlook on the opposite sex.