That combination of words lights up a bulb in Sinclair’s head. Certain things start to make sense. If there’s one thing that can cause misunderstandings between lovers, it’s sex. Apparently both of them have hangups about it, too: Wolfgang isn’t interested for some reason and Michael is blaming himself with no explanation. And, wait—aren’t they living together? And they just ran into this issue? What?
“...Alright, I think I just got the gist of this,” he says. He’s guessing that if he says the word sex out loud Wolfgang will freak out, so he’ll stick to allusion for now and hope he’s not completely wrong about everything. Sinclair takes a few long moments to think, then says, “Does he have a secondary mutation?”