Very common in the locker rooms and showers of a gym. I have seen it and participated on occasions. Also in the larger gyms there is a sauna and steam room in the men’s locker room I sucked many cocks in there.
I hate guys like the one that gets in the camera frame to just laugh like a cock blocker that he is. Mad because no one wants to give him action so he decides to ruin it for everyone. Those queens are always the first ones to talk shit and the last ones to get laid.