"Y-yeah? Well, I'm glad you're enjoying yourself, then!" ... As long as she's not getting judged too hard for this, apparently, Yukari is absolutely fine.

And then the conversation moves away from boobs, and onto something Yukari actually likes to talk about, so she nods. "Yeah. Well... something like that. I mean, I've never actually fought a dragon before, or even really anything that outright looks like one, but it's easy enough to figure out their weak spots. I don't think you said you had anything like that at your home?"