there are some comics that mention cleaning, but people are largely grossed out by poop and don't want to hear about it especially during sexy times, so it gets voided out. but i mean, even if someone rinses their bootyhole well, it's pretty unlikely they'll get everything 100%, and doing too much can irritate the rectum, colon, and intestines & damage gut flora. even shaving can result in microcuts, irritation, and ingrown hairs. so you kinda have to assume that, since comics are simplified visuals to begin with, grotesque details are eliminated. but also??? we don't want to see poo dick so

Totally off topic but do all bl men assume that the all ukes have clean assholes.