A= Aftercare (what they’re like after the act)
Muzan: he'll just let Kokushibou pamper him, to the point where he sometimes clinges to him. When he's not as tired, he'll ask for blood, if he is tired he'll just close his eyes and wait for Kokushibou to treat him like a prince.
Kokushibou: after sex, firstly he'll kiss Muzan's cheeks and forehead, then he'll pick Muzan up and put him in a warm water bath and clean the sheets. After cleaning the sheets he'll sit next to Muzan in the bath tub and wash himself and Muzan. Then he'll carry Muzan to the bed and cuddle with him.
B= Body part (favourite body part their own or their lovers)
Muzan: favourite body part of himself would be his hair, he likes it when Kokushibou pulls his hair or scratches it.
His favourite part of Kokushibou would be his hands. Muzan loves how big and strong they are, he likes it when Kokushibou worships his body with them.Kokushibou: favourite body part of himself is his hands. He likes to use them to worship Muzan's body. His favourite part of Muzan are his thighs. He likes to bite them, kiss them and just put his head in between them.
C= Cum (anything that has to do with it)
Muzan: he likes it in his ass, it makes him feel all fuzzy. But he really isn't a fan of it on his stomach, too dirty for him.
Kokushibou: he likes to see it in Muzan's ass, or mouth. He doesn't really care where it is, as long as Muzan's happy.
D= Dirty secret (Pretty self explanatory)
Muzan: has fucked himself with his own tentacles when Kokushibou was on a long mission, and he was wearing one of Kokushibou's kimono's.
Kokushibou: after first meeting Muzan and being absolutely smitten, he bought a sketchbook and he drew 569 pages of erotica (both him and Muzan fucking and Muzan just naked or something)
E= Experience (do they know what they’re doing)
Muzan: at first not, since in the Heian Period being a virgin would make people think you're possessed by a demon, he has had sex, with women. Before meeting Michikatsu/Kokushibou, he never had sex with a man, so he wasn't really familiar. However right now he's quite the pro at being a bottom.
Kokushibou: very much, he read both heterosexual and homosexual erotica when he was human, which is why he's so experienced.
F= Favorite position
Muzan: missionary and Lotus, he likes fucking face-to-face.
Kokushibou: missionary, Lotus and doggy, he likes missionary and lotus for the same reasons as Muzan, and he likes doggy so that he can bite Muzan's neck.
G= Goofy (how serious are they)
Muzan: serious, will get turned off if his lover makes a joke during sex.
Kokushibou: also will get turned off if his lover makes a joke.
H = Hair (how well groomed are they? Does the carpet match the drapes? etc.)
Muzan: complete hairfree, he thinks it's useless and simply waxes it off.
Kokushibou: just like Muzan, he simply waxes it off, doesn't see the need to have it.
I= Intimacy (in the moment romantic or rough/dirty)
Muzan: romantic, but also dirty. Depends on his mood, sometimes also bratty.
Kokushibou: romantic, dirty and rough. Will flirt, very romantic and will pound Muzan to next year.
J= Jack off (do they masturbate and how often)
Muzan: he does, but only when Kokushibou is gone for a long time.
Kokushibou: He doesn't, but he likes to watch Muzan when he does.
K= Kink (kinks what they like possibly unusual)
Muzan: praise kink, bondage, voice kink, voyeurism, hair pulling, body worship, double penetration, overstimulation.
Kokushibou: biting, blood, bondage, spanking, sucking Muzan's tits, body worship, double penetration, edging.
L= Location (where they like to get it on)
Muzan: bedroom or office, he likes to keep sex private.
Kokushibou: bedroom, office and training room, also for privacy.
M= Motivation (things that makes them tick/turn ons)
Muzan: seeing Kokushibou just train turns him on, or when his arms are visible.
Kokushibou: When Muzan flirts with him, Muzan also has a few dresses which also turns him on.
N= No (turnoffs or absolutely won’t do)
Muzan: sex in public, any bodily fluids other than cum and blood, threesome or just sex with anyone else that Kokushibou.
Kokushibou: the same as Muzan.
O= Oral (receiving or giving and how skillful they are)
Muzan: loves receiving and a god at giving.
Kokushibou: he likes both giving and receiving, he's good with his mouth.
P= Pace (how fast they are and how long they last in bed)
Muzan: when he rides Kokushibou he can go fast, but won't last long.
Kokushibou: mostly goes hard, he could lash up to 25 minutes.
Q= Quickie (do they prefer fast and hard)
Muzan: sometimes likes quickies (not always), likes them hard.
Kokushibou: not really a fan, he wants to worship Muzan.
R= Risk (do they like to try new things)
Muzan: no.
Kokushibou: also no.
S= Stamina (how many times they can go and how long each round lasts)
Muzan: lasts 8-12 rounds, depending how needy he is, takes about 10-20 minutes to cum.
Kokushibou: lasts 10-15 rounds, also depends on his mood and lasts 18-25 minutes.
T= Toys (are they game for using sex toys on themselves or lovers)
Muzan: loves toys, especially vibrators. But has shown a dislike for cock rings (Kokushibou has used it a ton on him).
Kokushibou: likes to use toys on Muzan, but not on himself.
U= Unfair (how do they tease or do they enjoy suspense themselves)
Muzan: will tease, then gets pounded to next year.
Kokushibou: sometimes teases, depending on his mood.
V= Volume (are they loud, what sounds, and do they talk)
Muzan: very loud, mostly whimpers, whines, sobs and moans, curses loudly.
Kokushibou: kinda quiet, groans lowly, curses under his breath.
W= Wild card (random sincannon of any sort)
Muzan: wants Kokushibou to fuck him with his fighting sword.
Kokushibou: wants Muzan to sit on his face.
X= X-ray (what’s down below in dem pants)
Muzan: sometimes has a dick, other times a pussy. His dick is 7 inches, but he'd rather die than put it inside something. His pussy is very sensitive btw.
Kokushibou: 16 inches. Will increase it. Has done it.
Y= Yearning (sexdrive level)
Muzan: high sex drive, just a whore.
Kokushibou: medium, is increasing because of Muzan.
Z= Zzzz (do they sleep after if so how quickly after)
Muzan: around 30 minutes after they fucked, sometimes right after.
Kokushibou: After he cared for Muzan, he will cuddle up with Muzan before falling asleep.
Next headcanon: SFW headcanons (Canon AU)
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Kokuzan headcanons
FantasyDifferent AUs with headcanons or canon, both NSFW and SFW, just silly thoughts I get