"Prostitutes are going to hell anyway, so might as well fuck 'em."

Also, "I'm still pure, I'm not the one who's female while selling my trade." this is how the goddamned Middle Ages remain among us. Lazy mindless hypocrisy.
Both monetizing their bodies, yet somehow this asshole is above it all, sees it fit to preach at the end, probably drove off with a smug superiority on one hand, on the other that inescapable self-hatred bubbling mighty close to the surface, post-orgasm. They know there's something wrong, and they zeroed in on the wrong thing while yelling "Mary had a little lamb little lamb little lamb".

It's like in that John Waters film Pecker, when some kid gets caught with no pants at a gay bar - "Mom, I'm not queer! Queers blow me! I'm still straight!"