Do cats and dogs sit directly on their assholes?

I don't know, but they're so cute and awesome that I really don't care. I've got Siamese cat ass everywhere and I don't care.
:-)

This is something I have never pondered but I guess you got your answer above... lol that there are pictures of cats on glass tables WTF and why?

Answer: No
Method: http://www.bing.com/images/search?q=cat+glass+table

yeah like us humans have buttocks and buttcrack our anus is inside that it’s advantage and disadvantage our anus is protected but it gives our anus a chance to be sweaty and stinky because it doesn’t get air like my anus always stinks but not like poop it just smells like dirty ass and my buttcrack hides it I never work hard to clean it I only wipe it after the bathroom I never even touch my butt when I shower so it becomes stinky which is ok with me because it’s a butt and supposed to smell like a butt

They certainly seem to. They must because, my cat once directly sat on a nail in the carpet tack and it went into her anus. She didn't seem to mind.

What if they do? I would say that it depends a lot on if the dog sits "side saddle", or if they sit directly on their butt, and if they are one of those breeds which either has a very short (or no) tail.

Personally, you can bring you dog to my house and let them sit all over the place on my floor, but DO NOT bring your baby with no bottoms on and allow them to do the same thing (:->)

mebbe ill put some lipstick on my dawgs asshole and go visit the neighbors with the new white carpet

I feel like it would hurt their tail to sit like that every time.