Idk what other s&m romance you're talking about, but thinking about it, it's really just him doing always the right thing the right way.
I always thought it was him being already "messed up" deep inside and she only had to poke the beast, so to speak....and his "ability" of satisfying her needs was a result of "being a natural already deep down"....that or she's so fucked up that she's "easy to please" no matter what he does (which doesn't seem the case).
I kinda was too busy to look at the whole showing teenagers exploring the bdsm world without it being too weird to focus on the fact that he does really look like a mindreader, always knowing what, when and how she wants it