A junior colleague from work invited me out to dinner because he had some troubles, and I couldn't resist the temptation and ended up cheating on him. It was a secret that I had decided to take to my grave, but my wife's mother found out. She showed me the photo evidence, and I had no way of denying it and kept apologizing, but she said, "I'll make your body so that you can't cheat on me again, so you won't hurt our daughter again," and started manipulating my crotch. Since then, I have been in agony as my ejaculation is controlled...