Ah, nice, two of my fave boys!
♦ - quirks/hobbies headcanon:
Kuei: Well, Kuei didn’t have much to do growing up because of Long Feng’s interference, so his biggest hobby has always been reading and studying. I’m sure the Earth King’s palace has a library (carefully scrubbed of any potentially subversive texts by Long Feng, to keep Kuei from getting any ideas about changing the way the kingdom was run), so I feel like Kuei was probably up to his eyeballs in books and scrolls for most of his childhood and teen years. Quirk: he would try to act out or test things he’d read about in books, like swordfighting techniques (even though the palace was suspiciously devoid of swords for him to practice with. Gee I wonder who removed them all, could it be… Long Feng??) As an adult, he now likes to actually do shit, rather than just reading about it. But also still reading about it. He really loves reading.
Ace: Hahaha welp we know what Ace’s hobbies were as a kid: picking fights, beating the crap out of grown-ass adults, sparring with his brothers, generally being a little hellraiser. As an adult on Whitebeard’s ship, his hobbies were… probably very similar TBH. XD But also partying with his nakama, sleeping, and often combining those two things. I feel like maybe he also had the same interest in bugs that Luffy does, and liked to make notes of which bugs he saw, with the idea of telling Luffy about the bugs next time they met.
☾ - sleep headcanon:
Kuei: He probably starts out by falling asleep in a very composed manner, and wakes up very much not so. He’ll start out on his side or his back and wind up facedown with his arm completely numb underneath himself and the sheets wrapped around his legs somehow. XD With Zafirah, he starts out sleeping with her tucked in next to/against him very neatly, but by morning they’re just a pile of tangled arms and legs.
Ace: He just sprawls every which way. His bed is wherever he passes out, pretty much. He does have his own quarters, being a division commander, but he isn’t too particular about actually sleeping there. He often winds up fast asleep up on deck, under the stars, spread-eagled on his back and snoring away happily. It’s not like he ever gets cold, anyway. If there’s a special someone with him, I hope they enjoy waking up with a freckled fire-dork all over them, because that’s what will happen. He prefers to fall asleep sprawled all over his s/o, but if it doesn’t start out that way, it will be by morning.
✿ - Sex headcanon
Kuei: Let’s face it, he didn’t have any interaction with anyone he could’ve gotten it on with inside the confines of the palace. Even if there were any servants around his age that he might’ve been interested in, I can’t see him doing the do with any of them. I think he wouldn’t feel right about it, given the power imbalance involved. He’d worry that they felt they had no choice in the matter. So his first time would be at some point after he left Ba Sing Se at the end of Book 2. And he’d probably know what to do in theory (that whole big library, after all), but he’d need to be shown what to do. But I feel like he’d try really hard to make up for the fact that he lacks experience. Overall, I think he’d be weirded out by the concept of rough sex and would prefer more gentle intimacy.
Ace: OK, Ace has some major self-esteem issues. He spent most of his life questioning whether he was even worthy of being alive. Even though he had brothers and nakama who loved him, there was probably always a part of him that doubted he deserved it. This would absolutely spill over into his love life. So I feel like he’d be very selective in who he’s intimate with. He’d always have that persistent voice in the back of his mind telling him he doesn’t deserve that kind of trust and physical affection. So in order for him to get it on with someone he would have to really trust them and really feel comfortable with them. But when he does make that connection with someone, he’d be 10000% invested in making sure they enjoy themselves as much as humanly possible.
♒ - cooking/food headcanon
Kuei: I’m entirely certain that he sneaked into the palace kitchens many times to try to cook things. It usually didn’t end well and he’d feel guilty that he made extra cleaning work for the kitchen servants. As far as actually eating goes, he’ll try pretty much any type of food at least once, especially while he’s outside of Ba Sing Se and traveling around.
Ace: Is it food? Is it tasty? He’ll eat it. That goes double for any type of meat. As for cooking… well, he prefers to leave that to the people who actually know what they’re doing, but he’s pretty damn good at roasting or grilling things.