[If anything, Ren's brows somehow get even more doubtfully arched at that, and he words what he says next in an almost delicate manner, as if trying not to shatter someone's illusions too hard.] I notice that whenever I talk about anything...inappropriate, let's say, that you seem to react like it's never going to affect you. Has it occurred to you that I might be interested in sleeping with you if the right opportunity arises...?

[Let's just say that directly, because implying it has not at all worked at other times. And then move on with all the casualness in the world like that's not even a remotely abnormal thing to admit.] Aichi and Kai are very special people, but I'm not sure where you got "love" out of that tone, I thought it was more exhilaration myself...

[Ah, wait, he thinks he has it.] I'm sure they'd be flattered to hear you think they're that amazing in bed, though.

[Definitely flattered and not flustered or embarrassed.]