My name is Mark; I am fifteen. I just started high school. My mother died when I was young. I have but few memories of her. But Ann is a different story. She is my stepmother. I was a few months from my 13 birthday the first time cum shot from my penis and all over the centerfold I hid under my bed. God! It felt so good; I just about wore myself out that night. Every time I woke up, I would explode a load on some nude picture from my collection.