First Time Fantasy

I masturbated for the first time at the age of 13 fantasing about one of my school mates. I was a freshmen in high school but was a year younger than my classmates. I loved gymn class, because we all had to shower and I got to see dicks of all shape and sizes, but what turned me on was the nice bubble butt of one of my close friends. He had olive brown skin and lots of hair around his large { 5 soft } penis but his ass was snow white and as smooth as a babies behind. I accidentally on purpose got to briefly rub it one day. I went home and began to play with my cock while in my fantasy I was butt fucking that awesome butt. The feeling was marvelous and before long I experienced my first orgasm. It took me a while to clean myself up and the bathroom as I shot all over the wall and sink. I am a junior now and I still have gymn with him and get to see that amazing ass ever day. I still jerk off to his image.