This trait is somewhat correlated with atypically rigid sexual objects or rituals of desire, as well as political advocacy for "perv rights". As in "no, I can't come until you impale me" or "you might as well fuck off if you can't deal with my feces".
"I just don't understand the thing with the needles." "Relax, that's just a part of him. He's a lighter."
"For the longest time I thought it was just for thrills, but then he told me he's actually a lighter."