Some of the information on the back of the box is incorrect, but muscle queens will only have eyes for DiTomaso.
Of ballbuster Roger's three slaves here, the only one who'd really qualify as a bodybuilder is box cover boy Nick DiTomaso. DiTomaso's a shaven-headed, tattooed giant; a solid mass of muscle. He also appears to be a complete neophyte in all things CBT, but Roger patiently explains his ground rules ("No fluid exchange, no marks, and no acting") and establishes the consensual nature of their twisted union. DiTomaso doesn't appear to scare easily, but after 20 pounds of weight is added to his nuts, the big strong muscleman's reduced to a whining, writhing pussyboy. Their session ends impressively; Roger beats off while DiTomaso appears to be in so much pain that he does... pull-ups. Really.
Elsewhere of note, Sheridan receives the benefit of Roger's electrical torture expertise; the more he convulses, the more excited Roger gets until he puts an end to it with his no-hands popshot.