Sooo only because there are more in numbers you would rather be shitted on than spitted on or what mlngth
I'm only saying if you're only worried about bacteria and germs, forget about kissing in the mouth because it's dirtier than the 'noble' parts ┑( ̄Д  ̄)┍ you're free with your sexual preferences.
Ass to mouth :( not my cup of tea