One thing I think is a perversion some are into is licking cum out of pussy or ass. And sometimes not even their own. Some guys really like to shoot their loads and then lick out the leavings of their ejaculation. Many also lick their own cum when they masturbate. They either cum into their hand and lick it off, or some even can shoot their cum into their own mouth.
One client that calls me is quite into licking others guys cum out of my ass. He wants to have them fuck me, then he lick out every drop. Several guys are into this that have called. I even remember my very first call the man was into this and I’d never heard of it before. They want me to sit right on their face and have me squirt the cum right into their mouth fresh from my ass and the other guys balls.
Creampie fans want the cum out of your pussy, lapping it out often as the other guy that shot it in there watches and mocks them for being a cum licking little cuckold and not a real man. Not like the one who deposited it in there in the first place. They often will clean it off the other guys cock as well and get every drop of pussy juice and cum from the better man’s cock.
Licking ass and taking another guys cum, or even their own, is not for everyone. Not all into cuckold are into that, but it is a branch on the cuckold tree shall we say many adore.