It was New Years Eve one year and I was babysitting the next door neighbours kids, I say kids the eldest was 13 and the youngest was 7. Me and the eldest (we will call her Charlotte) were good friends despite the age gap, it was never anything more until this night in December.
It was about 10.30 time for the youngster to go to bed, I carried him upstairs, read him a story and put him to bed. When I came back downstairs Charlotte had set up a game they had got for Xmas that year, something like 20 questions, inevitably it turned a bit childish, She asked me if I had a girlfriend (knowing I didn't) I said 'no, I didn't'. When her turn came round I asked her if she had a boyfriend, she said she didn't (I knew that). after a while she went upstairs to the bathroom, she was gone a long time so I went up to see if everything was OK, I knocked on the bathroom door, no answer, I tried the handle and it opened, empty, I crossed the corridor to her room foolishly didn't knock, I had just walked in on her just reaching orgasm on her bed. I instantly turned round with my back to her and walked out when I realised what she was doing.
She finished up and came downstairs, sat on the couch next to me and said 'I want to see you naked.', my instant reaction was no way but she said I had seen her masturbate so she wanted to see me naked, I thought about if for a few minutes. 'OK' I said, 'Lets go back up to your room.' She led the way, when we got there she closed and locked the door and drew the blind. I was a little anxious because I had known her from being little and it felt so strange to take my clothes off in front of her, as I pulled down my tighty whities, my dick sprang up pointing at the ceiling, she just looked with awe at my 5.5' boner. She was fascinated by it, she asked if she could touch it, I said yeah but only if I can touch yours, she said OK She grasped my boner with her right hand and I put my hand on top of hers to show her what to do, after a few minutes she was jacking' me off like a pro, God it felt so good, after three pumps I was ready for cumming but I managed to hold it back for a while, five minutes later I exploded all over her hand, she didn't pull away she kept pumping till every last drop was milked out of me. I said to her 'That was amazing!' she asked me what had happened, so I explained about semen and what it does.
Now it was my turn, she stripped for me slowly teasing me, she removed her panties in true strip tease fashion, again I had a massive boner trying to burst out of my pants. When she was finished stripping she laid on the bed legs spread wide for me to see, it was beautiful, her pussy lips a light pinky color, she didn't waste any time in sliding in her middle finger, it went straight in. My eyes wide and my mouth open she said 'Come on then.' And with that I jumped up and laid next to her on my side, she took my hand and slid it down to her slit, it felt amazing so warm and wet, she was practically dripping. I started to explore with my middle finger, stroking her clit and lips, just as I had done for her she showed me how she liked it, within minutes she was on the brink of another orgasm, moaning and groaning, I kept playing with her clit until her hips thrust upward she went tense and she climaxed.
As we were putting our clothes back on I sat on the bed to put my socks back on, I steadied myself with one hand and I came across a wet patch, she had cum all over her bed, I lifted my fingers to my nose and smelt them, sweet smell of her beautiful pussy was enough to nearly send me over the edge again.
A few months after this happened, I had to move away because of my dad's job, we never did anything like that again but we said we would stay in touch, I haven't heard from her since.