Gay ballbusting with hammer and everything

This guy is into gay ballbusting, that is, having another man crush his balls, and while it's common to see guys kicking or punching other people in the balls, who are apparently turned on by aggression in that area, this guy is more interested in BDSM, so he he sends the slave there chained and with his face covered, and to punish the bag he uses devices like sledgehammers, and the slave is tough, hey, look how he is and what he is doing. he likes those ball hits. and as for the punisher, it seems he is morbid for torturing another gay man's nether parts...