(Oh you're fine! Obviously I just hate talking about kink...)

"Hurt me = cum" is admittedly a bit of an oversimplification on my part: context does matter (if your dentist hauled off and kissed you in the middle of a procedure you'd probably be more confused than turned on) for example, but more relevant is the type of pain - oral stuff doesn't do it for me (okay, it does, but not the kind of pain you get at the dentist), but shutting my hand in a drawer or really bashing myself on a shelf super can, to the point it makes being clumsy in public really awkward sometimes. You get used to it, sure, but it's still more of a brain wiring thing than a contextual thing.