I am very phobic about having even a hint of a dirty boi-pussy, and don't have intercourse unless I'm absolutely clean in my rectum. I love to have my pussy eaten by my lovers before they fuck me, and they deserve the best hygiene if they're going to put their tongue inside.
Personally, I don't like to be fucked unless I'm empty. I don't enjoy the sensation of having my shit compacted inside me. There is a solid basis in fact for the phrase "fudge packer."
Depends on the individual, of course, but I've found that for my personal physiology it's best to do a Fleet's enema at least six hours before sex. If I do it closer in time occasionally some of the lubricant will leak out with a slight yellowish brown tincture.
I know some of the gurls and gay guys can get away just using a douche to clean the rectum, but that doesn't work for me. I'm a bit of a health nut, granola and trail mix, and I think that I have too much fiber-based fecal material moving through me at any given moment in time.
As a corollary to this thread, if you're using your own bed, be sure to have a waterproof pad under the sheets, and, if you don't have that, have a heavy towel because you can NEVER be sure. It's almost impossible to get a shit stain out of a mattress, the stuff is full of acids, enzymes and oils, and whatever vegetable dyes are in the food you consumed.
Btw, the pun in paragraph 2 was intended.
26.2% on the 500 Question Purity Test.