When girls say things how they’re horny all like “I want to sit on his face while he licks me out” THAT grosses me out.
Putting your but on his face with the only thing unblocked being his tongue, so when he breathes he’s simply breathing in the sweat from your vagina into his mouth, and then he needs to poke out his tongue and fiddle it in the place directly under where you urinate from…
Then the only thing he can see is your but hole, and if he smells through his nose he just gets poo particles all up there lingering forever.
(This is not a sexist comment. I have plenty of gross imagery with sex in general.