I just found out that my now twelve-year-old cousin has a thing for poopy diapers. He has always pooped big hard ones, and from as far back as a baby around nine months, has had this thing he does whenever he poops in his diapers. When he was a baby, I swear, he would hump in his car seat, walker, high chair, or on his crib mattress, the couch, the floor, and he would grab himself between the legs with both hands, break a sweat, turn red in the face, stare with glassy eyes, and make grunting and panting noises. When lying on his belly on the floor or wherever, you would see this huge, hard poop sticking out as he humped, the diaper holding it against his butt. It seems like a lot of boys in my family do this to some extent, but this boy really gets into his poop. Have you ever seen or heard of such a thing, and if so, is this why he is so into pooping diapers at age twelve?