From the age of 15 myself, I'm Tim and my bisexual teenage friend Simon have been having sex together. At first it was just kissing and caressing. Then he offered to give me a blow job. I finally let him perform fellatio on me and things went from there. Only three weeks later I was on my knees in his parents bathroom, taking his cock up my asshole. We've been fucking one another secretly ever since. We're still best friends and our wives don't know of our sexual relationship, and neither does anyone in our familes or the small town we live in.
Each year, the day after our birthdays (they're a week apart) we spend the whole day at a motel in another town, having what we call our fuckfest, going home as usual as if we've been to work. We're both well and truely fucked, but ready to sneak in our secret sessions whenever we can, the whole year afterwards.