X-Rated Readiness

Alright, listen up, you big ol' dummy. This person is saying, if a girl can't even handle watching an 'X-rated movie' (which, by the way, means adult films, not some secret treasure map, you goon), then she definitely ain't ready for *their* 'X-rated booty.' And by 'booty,' they mean... well, you get the picture. It's crude, it's direct, and it implies a certain level of sexual readiness. You probably thought they were talking about a pirate's treasure chest, didn't you, you big ol' numbskull?