How do you clean your butthole?

I usually soap it up with water and give myself a good scrub behind there and wash it off, but I’ve never stuck my finger in my booty and cleaned it.

My friend was telling me how she was having sex with this new guy and he stuck a finger in her ass during doggy and complained that it smelled like shit afterwards, so now I’m curious if that’ll ever happen to me and I want to be prepared lol

Another question is, do you usually clean yourself before sex really quickly like a quick wipe down with water? Do you clean inside it?