Ok, cleanliness.....

Most of the time you don't 'store' anything in the rectum except when you're about to go. That said, there's always a chance of a small amount of poop still in there.
Most of the time, if you have a have a good BM before play, and a bit of a wash, you should be fine.

Just to be on the safe side, though, I will usually have a small enema - not too big though. Just enough to get water into my rectum and not much further. The water gets things moving, but if you have a big enema you'll get water right up your colon which takes ages to come back out.
I usually have an enema an hour or so before play, because every so often you'll go "whoa, there's movement!" and run to the toilet, squirt some water out, and then everything's fine again!

After an hour or so it's usually good to go!

Good luck, let us know hot it goes! (Pictures are always welcome too!! lol!)

And yes, as with everyone else I'm curious about why you changed - hopefully not just because he kept on about it.

And I agree with Jude30 - Tristan Taurmino knows the butt. Definitely check out her book and her website.

CasperTG

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You know, Blackadder, for me socks are like sex. Tons of it about and I never seem to get any.

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https://imgur.com/a/80hiRdm