My sister is two and a half years older than I am, and we get along probably better than most brothers and sisters. She doesn't mind spending time with me, and I talk with her friends and stuff like that. I guess I look up to her. A couple of weeks ago it was her fifteenth birthday, and a few of her friends came over to our place. A couple of her friends, her and I were all in her bedroom, having a pretty good time. They were all in good spirits and started asking if I had a girlfriend. I said no, and they giggled, saying things like 'surely a stud like you would have tons of girls to choose from.' I'm a bit shy about things like that, and didn't really say much. Then it got worse, and they started asking if I was a virgin. I nodded. They laughed, then they asked if a girl had ever touched my cock. And THEN they asked if I masturbated. I went bright red and they were in hysterics because they knew that meant yes. I was so embarrassed. My sister was laughing too, and I kind of felt bad, but kind of excited at the same time.
Nothing else happened that day, but about a week later my parents were out of the house for the evening, and my sister came into my room. I was sitting on the bed in my pyjamas reading a book. She said she had felt bad about what had happened at her party. I said it was OK, but she said she shouldn't have let them make fun of me like that. I gave her a hug and told her I loved her. We were now both sitting on the bed. She had a funny look on her face that I didn't quite know how to read.
She said, 'Can you keep a secret?' I said yes, but she said, 'But I mean, really really keep it, forever and ever?'
Naturally I was intrigued, and assured her I would always keep her secrets. She paused for quite a while, and I said 'What is it?'
She said, 'Do you promise?' and I said yes. Then she said, 'I've been thinking about something. I want to make up for what happened at my party. I've been thinking and....well...' She was lost for words. I looked at her quizzically. She whispered, 'Don't say anything, OK?'
'OK,' I whispered back, not sure why we were whispering.
'Lie down,' she said. I hesitated, then did as she said. She started undoing the drawstring on my pyjama pants. I was in shock. 'Shhh,' she said. She eased the pants down, exposing my cock and balls.
'I want to be the first one,' she said, 'the first girl to make you cum.'
I couldn't say anything even if I wanted to. She spread my legs a little, then put one hand on my balls. It was an electric feeling: a girl touching my balls, and my own sister! In about one second my cock was rock hard, which embarrassed me again, but she said, 'Your cock is beautiful.'
She lay down next to me, her hand still on my balls, and whispered in my ear, right up close next to my ear, 'Have you imagined girls touching your cock?'
I nodded. Then she asked, 'Does that feel good when I touch your balls?' I nodded again. 'Have you imagined me touching your cock?' I didn't know what to say. 'Have you?' she asked again, almost insistently. 'Yes,' I said, so so quietly.
Then she wrapped her hand around my cock. 'Your cock is so hard,' she whispered in my ear. 'Undo your pyjama top.' I began slowly undoing the buttons: obviously she didn't want to get my cum on the pyjamas. She started to slowly pull my cock. I was frozen with excitement. My cock was so hard, but I was nervous as well. She pulled and pulled. It was almost like I couldn't cum. She sat up, and told me to spread my legs, then she sat in between my legs. She was fondling my balls with one hand, pulling my cock with the other. She started smiling at me, and I smiled back. I could feel my cum building, ready to explode, and then she said, 'Cum for me, I want to see you cum.' As soon as she said that I exploded. 'Oh yeah,' she said, 'good boy,' as she milked and milked, till I was totally covered in my own cum. She said 'Wait there,' then went to the bathroom and came back with a warm face washer to clean me up. Once that was done, she lay down next to me, her hand resting on my cock. It was a beautiful day. I don't know whether or not she will ever do that again, but I have never felt so close with anybody as I do now with her.