[Momo is more used to being the one yelling down the phone, so he holds it about a foot away for a few seconds when Wuxian opens with that. And then brings it back again when he's sure he's not about to get yelled at some more.]

Are you okay? If you want Momo-chan's disguise skills at your disposal, you'll have to tell me what it is you're trying to cover up.

[He's going to assume a monster feature of some kind, but he's seen very few of those so far that could be plausibly covered with makeup.]