"I wasn't going to lecture you," Jack answered, flatly. "I certainly wasn't going to bring up my personal experiences with him." He paused there, eyes finally and firmly on the Doctor's, though his expression was just about as flat as his tone, save being ever-so-slightly pale. "I don't think your sexlife is any of my business. If you get off on being beaten up in the name of saving someone - or entire universes- it's between you and your lover."