Lol,one of these kinds is NTRI actually think it's an intentional part of the kink to make the men ugly. Game after game after game gives female characters ugly and/or old characters to hook up with. JOHN is maybe the worst perpetrator of this trope in any game I've played. I don't know the psychology behind it, but I think there's an element of humiliation in this kink, a sort of "look at how the ugly old man pleases the woman better than her boyfriend/husband does."
If I've learned anything on F95 it's that men have A LOT of kinks, and many of them involve other men in one way or another.