Brutal bound ballbusting from Araneae BB1641

Description: Domina araneae's caged prisoner had three strikes for wanking, and he's used them all up! he finds himself in a very worrying position with his balls locked to the front of his cell with a humbler, his wrists and ankles bound so that he cannot move. araneae is going to punish him at the source of the problem: his balls! perhaps if she hurts them enough with squeezes, slaps, kicks and knees, he won't want to masturbate ever again?!