Another two for errorink and any other skeleton pair?
1) Who rocks the Ferris Wheel seat and who flips out and begs them to stop?
4) Who likes to walk around the house naked and who tells the other to go put some clothes on?
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For ErrorInk, Ink's definitely the heathen who rocks the ferris wheel seat, purely for the lolz. Meanwhile, Error would be having some insane anxiety and almost screaming at him to knock it it off. If Ink doesn't stop on his own, Error can and will force him to stop, and that's not up for debate
Ink's also a streaker, 1000%. He feels no shame and would definitely walk around his house naked without hesitation. Sometimes he does in on purpose, just for the reaction. While he's pouring himself some cereal in his birthday suit, Error's entire face is bright blue and he's yelling at Ink to put some damn clothes on
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For another skeleton pair, assuming we're still going with pairings from Riderverse, I'm gonna go with Death x Geno/Error
On the off chance that Death feels like being a menace in some small way, he might be the one who rocks the ferris wheel seat. Maybe. I'm not 1000% sure. Meanwhile, it doesn't matter who's in control of their shared body, because Geno and Error would both be panicking and yelling at him to quit it. Especially Geno, since he's not a fan of heights
Death's also the one who might be ok with streaking around the house, too. He's been staying with Geno and Error more, and since he's all but officially moved out of the riders' main household, he probably feels like being in the nude is something he can actually get away with now. He wouldn't do it all the time, but maybe once in a while, whenever he didn't feel like getting dressed. Error and Geno's reactions only feed him and make him wanna do it more though, since while Geno would ask what he's doing and why he's naked (all while trying really hard not to stare at him), Error's face would be completely lit up and he'd be visibly embarrassed as he snaps at Death, telling him to put some clothes on and quit being such a weirdo
Death as Freddy, because he's already pretty much the Dad™ of the group and he does have a soft spot for kids
Famine as Monty, because he's a big dude who looks kinda scary to some people, but actually has a soft boi hobby (*coughs* cooking. Monty's soft boi hobby is golfing)
War as Roxy, because of her short fuse and speculated insecurity/low self esteem/inferiority complex. She constantly pushes herself to be the best and the strongest, because who would she be if she couldn't do that? She'd be weak (and feel like she was nothing, in turn), and that's not at all what she wants
Pest as Chica, because he likes children and eats garbage. While Chica has had her little cupcake buddies, Pest has rat friends
(this got a little long, so everyone else is under the cut XP)
Connie as Sun, because she adores children and would seriously love to spend all of her time with them. Caring for them is a breeze for her, and as long as she had the energy and time for it, she probably could start turning into a bit of a neat freak. She also has more anxiety than she lets on, and she usually hides it with a smile and silly jokes
Ret as Moon, because he can be soft with kids, but his job has hardened him to the point where it's hard to be soft with anyone at all some days. He can be soft with Connie and Mortem, but sometimes, he actually needs to consciously make an effort to let his guard down around the others. He's definitely a neat freak, and he has a tendency to be a little short fused and scary at times
Abrael as map bot, because c'mon, it's funny. That, and y'know. Pirates and maps. If Foxy was still an active character in the game, I would've said they'd be him instead
Roulette as Vanny/Vanessa, because of the white rabbit theme. That, and I read that Vanessa was a follower of Afton's, which would line up perfectly wiiiiiiiiiiiiiith-
Othni as Springtrap/Afton, because he's a wacked out old man with some serious issues. Othni's scent is a mix of rotten fruit and smoke, which kinda lines up with how Afton's been burned only god knows how many times now. Othni's also a homicidal maniac that's a little too stab happy, which seems like a very Afton kind of thing, too
Then literally any child character could be Gregory, except for Paragon and Eris (since they're babies still, obviously). Every other child though? Mortem, Pixie, Iniko? All chaotic little heathens. Ivy and Marcell could be heathens too, but for the most part, they're both good kids with too much anxiety to be Gregory
Added bonus: Fresh as DJ Music Man, because 1) music and dancing, 2) cool guy vibes, and 3) goes from 0 to 100 really fricken fast and is terrifying. They're both big guys, too
Connie as Sun and a Shattered version of herself as Moon could be cool though, too. Same with Ret turning into Lyzer, or even War turning into 406. Another one I considered was Geno turning into Error, since they're already two guys stuck sharing a body, just like Sun and Moon