Anna was the typical sister really...stroppy, rude at times, sweet as pie at others and, of course, secretive in the way girls are at that age. She was only a year older than me.
I guess I was a typical curious and horny boy...but I was always under confident and had not so much as kissed a girl or even held ones hand. But boy, was I curious! I had seen Anna loads of times in her bra and panties or bikini and now and then I would stare. I wondered if girls jacked off as much as I did. I wondered how they did it. I wondered what they looked like. For me a cum was harsh, violent, aggressive. Was it like that for a girl?
So this one afternoon I had skipped school, something I eventually got expelled for, and had gone home for an uninterrupted jacking session. I liked the house to myself and I could be naked anywhere which added to it. I opened the door and almost immediately heard a noise which meant my plans had just evaporated. I crept upstairs and saw into Anna's room. She was lying face down on her bed with her skirt up and her legs spread. And she was grinding her hips. But what grabbed my attention and startled me a bit was the fact that her panties were visibly wet between her legs. I had no idea! She was really getting into it with her eyes tight closed and breathing hard and swearing, 'fuck me....fuck me you cunt...do it...do it inside me!' then she kinda hunched over and held her breath turning bright red at the same time and there was a squirt of something into her panties. I didn't know what it was then and I thought she had peed herself.
I had never seen anything like it in my life! I made damn sure I tiptoed to my room and I actually hid because I didn't want her wandering round the house and finding me there. I needn't have worried though because I heard some movement in her room followed by her running down the stairs and the slam of the front door.
I was really shaky but also harder than I had ever been. I went back to her room and this time went in. It smelt of something. I didn't know what it was, but I know now it was sex. On the floor were the panties she had been wearing, the crotch was still wet although there were white stains there too. I picked them up and held them to my face. Almost immediately I felt like I was about to cum and without thinking got my dick out. Three strokes that was all it took and I knew I would shoot and the only thing I had was Anna's panties. So I caught it in them.
Then I was quite scared because I figured she would know.
All that night I was scared to look at her and catch her eye, but nothing was said until a couple of days later when she said 'you owe me!'
I didn't find out what she meant for a couple of weeks.
That was the first time I smelt a pussy.. A couple of weeks later Anna and I started what would be about six weeks of fooling around with each other. Just exploring, talking, and stuff. We had a lot of questions for each other some of which were better answered by a demonstration than with words.
Our masturbation with each other was great.