I think the wife caught me

So since I was 18 I’ve always had experiences with guys here and there but I have been married for 13 yrs now. My wife likes to goose me (poke my butt) sometimes she will do it down my pants. Well the other night she did it in bed down my pants and after poking me quickly said it’s smooth.. she realized I shaved my asshole. Which I have off and on hoping someone would turn me out. Anyway I think she was a little freaked out to discover my asshole was shaved and I’m not sure I can explain it away..