in hentai, clean face can be cheater, but all cheater has that mole, and most of them are milf (30 to 40), that mole is lewd mole. By put that mole on her it is like author saying that soon or later she is going to cheat. Either by her self or by someone that rape her so good that she start to like that dick more... wait her husband raped her before date her... lol