Rim Job

It seems that in culture right now, I am always hearing jokes or sex comments about giving or receiving rim job. In another term: eating ass.

I have found that I am completely lost on this issue. The following questions are NOT MEANT TO JUDGE. These are my ACTUAL QUESTIONS THAT I HAVE.

- is this really as common as pop culture makes it seem?

- do you have to clean out your ass crack and butthole before you receive it?

- how do you get past the smell?

- what prep before hand is involved; if any?

- can you taste poop?

- how do you not get sick from it? E. coli?

- do you have to brush/wash your mouth out afterwards to stay healthy?

Okay that’s all. I’m genuinely curious.