Mahito is, well, Mahito, so older muses are great too!

13 + 23

Any muse you want for 13

13) Honestly I'm good with Mahito for this one because I love that he can just be whatever? He'd most likely opt for noisy, but given everything anatomy-wise, it's not like he's so overwhelmed he can't help it. He'd just legitimately want to be that annoying. Depending on the partner, though.

Loud (either playful or whiny) with Getou. Loud (blatantly fake and complaining/taunting constantly) with Yuuji. Quiet (in a feigned respect to not get caught) with early Junpei, but a toss up between quiet (bored) or loud (to irritate him) after your canon point...

Basically the volume dial and willingness to stay on topic follow that same "no need for consistency" as everything else, and it's a mess.

23) I've been surprised by CR playing out in a way that made me ship it, a few times (whatever disaster Jumpy and Squalo had going on in Snowblind was beautiful), but I don't think I've actually had the luck of any ships ever developing ICly without planning!

If the "relationship" factor doesn't matter and we just look at smut, though, I'm still finding it hilarious that a Noctium event got Mahito and Deku together. I think they're not even actually on bad terms yet??

2, 4, 6 for Mahito

15 lol

... I may have lost track of this when the JJK liveplurk started. lemme go look at both of these whoops

2) Humans. He hates them, but he's fascinated by them, and even wants to be like them. Not to mention, since the way curses reproduce is really non standard, humans are a target just on instinct as well.

There's no specific "type" he'd be drawn to for romantic reasons (romance is gross, anyway??), but for trying to cultivate negativity he'd definitely steer towards anyone whose soul seems to be hurt. So gloomy or hateful types.

4) Hahaha no. He only uses "I don't care enough about you to bother with your name" names, like 7:3, Topknot Gorilla, and my personal favourite, "that thing". In regards to what he's called in return... He's actually pretty easygoing with anyone he gets along with, so I think he'd tolerate them. He wouldn't understand or in any way prefer them, though.

6) So assuming this means a verbal rather than physical fight,
This might be another thing that heavily depends on who the partner is. If it's someone like Getou who still presumably has some future use, he'll just sulk about it for a few seconds and move on.

If it's a curse he sees on relatively equal ground, he might just wave it off and ignore that there was any problem. He really actually doesn't get angry much, or hold grudges! If it's anyone else, though... Mahito "fixing" problems is honestly just killing them.

15.Okay so there's two versions of this.

Straight from canon? He's going to do exactly what he believes his partner would prefer. He doesn't actually sleep, but if that's what the timing seems to call for, he'll fake it and lay around with them. Talking, cuddling, going back to any other activity they want, whatever.

Because it's all about manipulation. He has no sex drive, so the act itself would only have been to deepen the other's trust in him.

In a setting where he's been taught it's fun (because wow he is impressionable enough), or something like Noctium that overrides everything, he'll take things a little less seriously. Play, maybe push his luck playing too much, and then back to whatever else was going on, like nothing's happened.

Might hang out. Might wander off. Might be kicked out first. It's a mystery.

Basically it all comes down to who's using who.

jeez mahito... chill