When I was 20 my friend and I would write each other and one of the letters that she sent had a picture of herself nude in it and she said she wanted me to send back a picture.
She was a slim girl with b cup breasts and a shaved pussy and the picture gave me a hard on as soon as I looked at it.
I went into the bathroom and laid it by the sink and stripped down naked. My erection was pointed towards the sky and I was leaking precum. I rubbed my dick slowly and soon felt my orgasm coming on.
It was a strong orgasm and it almost put me on the floor when it hit. I shot three or four times hitting the wall and across the counter by the sink.
When I looked down I realized that I had shot all over the picture. I had to throw it away when I cleaned up.
My friend and I have never done anything together but maybe one day.