My horny little sister
When I was about 17 years old my sister (Kim for this story) was about 14 years old. She was just starting to develop into womanhood, with small a cup breasts and a firm butt. She was so innocent, and had never had a boyfriend before.
One night, I accidentally sent her a text that was meant for my girlfriend that involved us having sex. I felt so embarrassed about it and quickly tried to apologize in the next text. To my surprise, Kim wanted to know more about it. I told her it was hard to explain, but I would show her if she wanted. She agreed and I walked into her room.
She was laying down in bed and I sat in a computer chair. She turned her head to look at me and we began to talk about what each of us had done with other people, which wasn't very much at the time. She had only kissed her boyfriend, and that was it. She then out of no where asked me 'Can I see your thing?' I was shocked and slowly pulled my boxers down. I was semi hard at this point. She asked me if this was as big as it got, and I told her no, but I need something to look at to make it bigger.
Without me asking, she pulled off the blanket and stripped down. Her pussy was hairy, but trimmed and her nipples were small, hard and dark. I could see a little wetness shining in the light. I instantly got rock solid. She told me that she wanted to see me masturbate, so I started. Before long I was getting close, and I told her. She walked over, spread her legs so I could see her and told me to cum. I groaned as I started cumming and without warning, she grabbed my cock and started pumping furiously which made me cum even harder. She gestured me over and told me that she wanted me to give her her first orgasm. I reached down with one hand and rubbed her clit until she came so hard she squirted a little on the bed. We repeated this a bunch more over the past years, and I look forward to our next experience.