In Towel Boy from Extra Big Dicks, Jace Chambers forgets to grab a towel before jumping in the shower at the gym, he calls out for help and Zane Taylor brings him a towel. But when Zane sees Jace's big cock, he forgets all about the towel and drops to his knees.
Want To Have Some Fun? from Men Over 30, finds Cesar Rossi in the shower and Adrian Suarez is watching him dry off. Adrian kneels and sucks Cesar's cock. Before this scene is over, these two guys fuck each other on the shower room floor.