Yogi, I call my "Booger Kisser" If you let him kiss you unchecked he won't stop. (He doesn't actually kiss boogers...lol, but I think he would if you let him)
Buttons though, took me almost a year to get kisses off her, and she only does it when I come home, or the occasional lovey-dovey mode, or she's just jealous that Yogi is gettin all the kisses and butts in for one.