Cleaning Basics
Well, it seems pretty clear. If you’re going to be playing around with body parts, you generally want them clean and free of obstruction.
Your bottom is no different. Aside from the fact that we don’t want to make more of a mess than necessary, by taking time to clear yourself out, you’ll be removing a lot of the “ick factor” that turns so many people away from the potential for amazing pleasure.
So, at the very least, make sure you’ve had a good poo, and clean the area on the outside carefully (showers are always good).