The GILF Mistress #1: Masturbating to My Best Friends' Hot Grandma

My best friend is a sexy jock that lives next door and attends a private school. Had we not grown up together, we'd never have become friends, because I am a much nerdier and less manly 19-year-old boy that's practically a virgin still. However, I begin to wonder if things are going to change when I am caught masturbating by his sexy grandmother.