[ Natsuki glances up from the cup, a little flustered that someone caught her sniffing it and not just drinking it like everyone else. ]

Wh-what? It's fine. It's just, you know, I think this one might have gone ... bad.

[ Something about her tone suggests that she doesn't actually even know what this beverage definitively is, let alone whether or not it's "bad" or "good". ]

I-I guess ... it'd probably be better to just have water, just in case.

[ But she COULD drink it if she wanted to. Totally. ]