Quite apart from "Pepperony" (thank god my own fandom is mainly free from stupid ship names!) the idea that hot, loving sex could "cheapen" a relationship makes MY eyes bleed.

Don't get me wrong, I definitely think adding sex to a friendship can complicate the relationship, and that there being a friendship at bottom is no guarantee that the relationship will be successful (though it gives you a WAY better platform to work from than if there weren't). But "cheapen"? Give me a break.