Looking for a specific kind of stories

Sorry to ask, but I'm looking for a specific kind of stories when the male subject is slowly punished by having his balls crushed or slapped but not kicked due to his behavior or for interrogation purpose. What I'm looking for is slow torment of the male, not kicks but if there are kicks or punchs it must come after a utterly helplessness of humiliation part where the male have his genitals locked or exposed. The feeling of helplessness or realisation that the part of his body that will be tortured are his cock and balls is essential to me. In my dreams the story would involve edging, combining pleasure with pain, and some full body slow oiling. But absolutely no incest. So pleasure and pain that is, it can be gay or not as long as the helplessness and exposed feeling is here.