>>55001715>>55001767While some self-inserting is likely involved, it's mostly a humiliation/degradation thing. It's like other kinks related to something disgusting but, in this case, the partner itself is the disgusting subject.
Well, that is if the attractive partner finds the other one disgusting and is aroused by *what* they are doing instead of *who* they are doing. If they're just a slut with no standards or with weird tastes (example; a fetish for fat, hairy, old or smelly guys), THEN it's just wishful thinking.