Whenever I have anal sex with my gf I have to really prepare her with some plugs and lots of lube in her ass before she can enjoy sex with me. Yesterday I just used two fingers and some spit and then fucked her using only my spit as lube. She let me do that but we talked afterwards and she said it h...

I was wondering in terms of cleanliness when is the best time for anal?
Especially considering lunch and dinner. When is it the cleanest?