I wear lipstick sometimes, most not, when I do it is to accentuate my outfit. It seems that some outfits call for lipstick. My brain is weird. As for kissing, well, it's not like I'm getting kissed so that is a non-issue. Two recent gal acquaintances, who are apparently obsessed with me (not sexually), get on me for not wearing lipstick.
Oh, and smiling. They keep posturing at me to smile while I'm on stage playing bass. I told them, search for the term "bassface". I'm not alone at looking serious while playing bass. Ever try to smile while being serious and concentrating. It ends up looking like a pasted on grimace.