Coach Calvin and Mark, two hulking jocks, face off in a locker room, their bulging jockstraps a testament to their manhood. Calvin, with a sadistic gleam, initiates a brutal CBT session, using his bare hands and a nearby paddle to assault Mark's vulnerable balls. Mark grunts and groans, his jockstrap tenting with each strike, as Calvin pushes his limits, turning Mark's sac a deep purple.