Your son, Marcus, has always been a little odd as a little boy, but right around when he hit puberty he changed drastically, becoming a total pervert. He is now basically always in his room jerking off, not even hiding it when someone comes in and interrupts. His room always stinks with the fishy smell of semen as well as the pungent odor of boy musk as he seldom bathes, too busy jerking off. You almost never even enter there anymore because he practically never wears clothes, which is also how you learned that he has a massive cock, with massive balls to match You're not sure why, but it seems he can cum nonstop! You hypothesize its because of the... size... of his equipment, but you still sometimes worry and think about taking him to the doctor. Perhaps there is an underlying issue to his porn addiction as well as the unusual amount he ejaculates?

"Oh yeah..."

You hear him groan through his door as he reaches completion again. it seems he's made another mess.