[He winces slightly at the word 'indecent.' Is he implying that Ace is indecent for having several tattoos? Hopefully not!

He soon gets distracted from the mere suggestion of such when he's told that what he'd just seen isn't a tattoo, but gills.]

Mm, alright. Makes sense. You're a sort of Fish Man, aren't you? [He'd have thought that those were just in his world, but seeing as how he'd been in several worlds himself, and witnessed many different folk -- this isn't strange at all.]

Are those the only gills you have, then? You look far more human than not.