[ At the very least, Yosuke doesn't seem too disappointed, which is good. Since he really, really, really doesn't want Yosuke to feel bad, or to worry, or feel like this is his fault. Even though it kind of his fault? But not in a bad way! ... help.

The curiosity and confusion yield mixed feelings in Yu. Some relief, since at least he doesn't seem bothered by the use of the word, but also some dread, since...

... he's not going to have to explain sex to Yosuke, is he?

That question is partially answered while he's still getting his thoughts together, and Yosuke tosses that question at him. He makes a weird sound, somewhere between a choke and a cough. He does end up clearing his throat. ]

... humans don't have seasons. But that is ... how I'm feeling right now. ... this--

[ Yu gestures ... below his waist. His shorts floating in the water obscures it slightly, but there's still a somewhat obvious bulge between his legs. Calling attention to it makes him wish a little bit that maybe he had actually drowned the other day, though he doesn't really look it. He just seems a little ... tense. ]

--is because I ... really liked what we were doing. So my body reacted. [ That's a pretty safe way of describing it, right? Thoughtfully, and again, somewhat plainly: ] We describe it as getting aroused.