That this may be a demonstration, but they're really enjoying their job right now.

[He quirks a brow at Satsuki, curious about her reaction. Yeah, it was kind of weird, but he's unfortunately seen much more unusual, if not as sexual, worlds. The idea that sex was this integral to the society of this place wasn't exactly a stretch.]

I guess they do say to enjoy your vocation... never quite considered you could apply fetishes to that, though.