It was Saturday night, 1 am. My parents were gone all weekend. I was standing in front of the door to my little sister's bedroom, breathing deeply in an attempt to ease my anxiety. I was about to do something very dangerous and stupid, I was well aware of that, but I just couldn't resist anymore. For too long, I'd wanted to do this. Swallowing my fears, I cautiously opened the door to her room and stepped inside. It was dark inside, the moon casting just enough light through the window that I could make out Jessica's outline lying on the bed, curled up beneath the blankets.
I moved closer with small, slow steps, walking as quietly as I could. She didn't react to my entering and her breathing was slow and calm; she must've been fast asleep. She was a very deep sleeper, I knew. Many times when we were younger I'd pull pranks on her while she was asleep, and she'd never notice until it was too late. I suppose this was sort of like that too, in a strange way. Wanting to make sure she wouldn't wake up, I gently sat down on the side of the bed and, when she didn't respond, carefully stroked my hand through her hair.
She had this beautiful mop of wavy red hair that always cascaded down her shoulders like a mane. In fact, all of her was beautiful. A youthful face with big blue eyes and full pink lips, and a slender figure with a pair of breasts that were impressive to say the least, especially considering she'd only recently turned 18. I'd say those were her best feature. Whenever she was near me, it took a lot of effort to keep my eyes from trailing to the proud swell of those heavy melons inside her shirt. Yeah, I know, she's my sister, it's wrong and all. But I can't help it.
She still didn't wake even after I touched her, so I knew she was really out of it. This was my chance. What I was about to do was dirty and wrong, but I had to. I'd longed for her for too long. Slowly and carefully, I grabbed the blanket covering her and pulled it down, revealing her upper body. As it turned out, she was topless underneath. It was too dark to make out the texture of her skin or the colour of her nipples, but I could clearly see the outline of her heavy breasts, sagging to the sides as she lay on her back.
I suddenly became aware that my heart was beating like crazy, so loud I feared it might wake her. It didn't though, and I anxiously reached out to caress her. My hand found her right breast, cupping it and lightly squeezing down on it to feel the consistency. It was warm, soft, squishy... and although I hate to admit it, the first breast I've ever touched. My cock was already rock-hard and throbbing inside my pants at this point. Carefully, I stroked my hand across her breast a few times, feeling the shape, the weight, the smooth skin. It felt so nice, it almost made me forget how risky and stupid this was.
Then my fingers found her nipple, and I just couldn't help but stroke it a little. Run my finger around the little nub a few times, before taking it between thumb and index finger and squeezing just a little bit. A soft moan escaped her lips. It scared me so much, I might've gotten a heart attack on the spot. I didn't though, and she remained fast asleep despite it. Emboldened by my little sister's obliviousness, I brought my other hand to her left breast and squeezed it gently, causing her flesh to bulge out between my fingers ever so slightly, while caressing her right nipple some more, rolling it between my fingers.
She moaned again, and shifted her position a little with a squirming motion. The prospect of her waking up was terrifying, but her reactions were also strangely encouraging. I put both my hands to use squeezing and massaging her nipples, doing what I imagined would feel good to her. Apparently, I did a pretty good job, because her nipples were slowly stiffening under my touch, while she continued letting out occasional moans and making occasional squirming movements.
I couldn't take it. My plan was to merely fondle her a little and then leave again, but I needed more. Before I had time to question my decision, I found myself leaning forward and taking her right nipple into my mouth. Sloppily covering her entire areola with my open mouth, I started frantically lapping at her nipple with my tongue, trailing circles around it and getting it all wet and slippery with my saliva. I tried to tell myself to be careful, that I might wake her if I do anything too intense, but it felt so good I couldn't contain myself.
After what might've been a few seconds or a few minutes, I really couldn't tell, I switched to suckling on the other breast, while bringing my hand up to continue squeezing and fondling the right. Somehow, Jessica's was still asleep, though her breathing had gotten heavier and her moans more frequent. The thought that I might be giving her a wet dream crossed my mind. I kind of hoped she was dreaming of me.
When I finally found the willpower to pull away from her delicious chest, I noticed that she, in addition to panting and softly moaning, was squirming her legs, rubbing her thighs together. You did what you came for, I told myself. Leave before she wakes up. But I couldn't. I had her at my mercy, moaning and squirming and all. And there was a very important part of her I hadn't explored yet. I had to know.
Sliding my hand away from her breast, down the gentle curve of her stomach and under the blanket, I felt the fabric of her panties, the only thing still separating me from my target. After a moment of hesitation, I slipped my fingers inside. Immediately, I was greeted by a patch of soft, fuzzy pubes. I couldn't see them, but I knew they'd be red, just like her hair. Trailing a little further down, I felt the immense heat coming off her crotch, and noticed how wet and sticky both her crotch and the crotch of her panties were.
