Muscle Fuckers 3 is proof that time in the gym translates to a really good time in the sack. Superstar Samuel Colt is covered in cum, his own and Mitch Vanghn's, at the end of their scene. Brad Kalvo and Alessio Romero get started before the cameras roll, and keep at it until the big finish. In a battle of abs, Cavin Knight thrusts hard and fast inside Marc Dylan, with Marc getting the cum shower. Muscleman Shay Michaels and studly Kyle King play at the sex toy factory while the boss is away, but no toys are needed for the hardcore action.
| Actor | Role |
|---|---|
 Alessio RomeroNot listed | Not listed |
 Brad KalvoNot listed | Not listed |
 Cavin KnightNot listed | Not listed |
 Kyle KingNot listed | Not listed |
 Marc DylanNot listed | Not listed |
 Mitch VaughnNot listed | Not listed |
 Samuel ColtNot listed | Not listed |
 Shay MichaelsNot listed | Not listed |