Even the human mouth is more dirty then the asshole.
each to there own, i love being rimmed.
french kissing more risky then rimming both ways or one way.
if i am allowed to post a link let me know so i can post about oral sti's to prove my point.
Anal germs need "fellow" germs of the same "varsity" to have a little fight and cause issues.
i am sure not all working girls giving FK or deep FK wash properly after each punter.
You're talking in very general terms here.
There's probably more different types of 'germ' in your mouth than on your arsehole, true. And I should imagine you're more likely to catch a cold/flu virus by kissing than rimming.
But rimming carries a much geater risk of passing on various very nasty stomach/intestinal conditions, including parasites.
Arses can carry genital warts. As for passing on stuff like gonorrhea orally, I'm not so sure about anally?
I'm interested to see any links from reliable sources, I'm sure they're allowed.
"Anal germs need "fellow" germs of the same "varsity" to have a little fight and cause issues."...I'm not quite sure what you mean by that. Has your arse been to university? Does it have a degree in anal sex? I shouldn't imagine bacteria present in a recipient 'having a fight' with invading bacteria would cause issues, but if your arsehole has a First Class Degree in Anal Studies, I bow to its superior knowledge
.