E, J, K, R for Zack – Flurry

E = Experience (How experienced are they? Do they know what
they’re doing?)

Not very, he’s been waiting for the right person. 

J = Jack Off (Masturbation headcanon)
He wishes he had more time to, but when he does have the time…

K = Kink (One or more of their kinks)
He likes being tied up. Aaaaaaand he likes his partner in thigh highs and nothing else

R = Risk (Are they game to experiment, do they take risks,
etc.)

He’s up for trying something new, but nothing too risky. 

E, F, U for Mettaton – Flurry

E = Experience (How experienced are they? Do they know what
they’re doing?)

Very experienced, knows what he’s doing, likes proving that he knows what he’s doing.

F = Favourite Position (This goes without saying. Will
probably include a visual)

He likes being ridden. Some people thought he was pillow princess-y for it, and he was quick to show them they were wrong, and then the door.  

U = Unfair (how much they like to tease)
A lot. It’s sort of his method of gauging how badly his partner really wants it. But he doesn’t make them beg. Just ask nicely. He’s more than willing to give you anything you ask for. 

B, E, K, U for Sighdon – Flurry

B = Body part (Their favourite body part of theirs and also
their partner’s)

On himself: his crest. He thinks it makes him look distinguished. 
On his partner: e v e r y t h i n g (also their hair. he finds hair fascinating and likes playing with it). 

E = Experience (How experienced are they? Do they know what
they’re doing?)

Not very experienced at all; I don’t think he did anything remotely sexual until he was in a relationship that was definitely headed for the altar (er… Statue of Hylia), so it’s all been a big exploration with his spouse.

K = Kink (One or more of their kinks)
BITING. What else is he gonna do with all those teeth?
Also the predator/prey dynamic; he discovered that one by accident.

U = Unfair (how much they like to tease)
Precisely 0%. A Prince provides for his people. ;D

B, D, K, V, U, Y for Howzer

B = Body part (Their favourite body part of theirs and also
their partner’s)

On himself: his arms.
His partner: their legs (he really likes having their legs around him, especially when they clench their thighs)

D = Dirty Secret (Pretty self explanatory, a dirty secret of
theirs)

He occasionally does sexual things– alone or with a partner– in places where he could get caught because he sort of wants to be caught one of these days. The tension of whether or not he will each specific time gets him, too. 

K = Kink (One or more of their kinks)
Exhibitionism LMAO

U = Unfair (how much they like to tease)
Hmmm not much. 

V = Volume (How loud they are, what sounds they make)
 Mostly grunting, some muttering (dirty talk, I think)

Y = Yearning (How high is their sex drive?)
It rises and falls. The more he does it, the more he wants it. 

J, K, S for my lil nerd – Flurry

J = Jack Off (Masturbation headcanon)
He keeps a diary of his sexual dreams, and often rereads them as inspiration, and sometimes after writing one down, is already touching himself before the ink is dry. 

K = Kink (One or more of their kinks)
Orgasm delay– his and his partner’s– but only insofar as he really wants to have a simultaneous orgasm with his partner (this is a frequent element of his dreams, too)

S = Stamina (How many rounds can they go for, how long do
they last…)

He could go for two, but restricts himself to only one round, of middling length (~35 minutes, including foreplay), but with a lot of cuddling and chatter afterwards.
But he has responsibilities during the day and needs his sleep at night.

A, B, Q , T & V for Zack. – Flurry.

A = Aftercare (What they’re like after sex)
PUPPY BOY. Wants to cuddle for the rest of his life afterwards. Very attentive. 
B = Body part (Their favourite body part of theirs and also their partner’s)
On himself: he likes his hands a lot. He likes how they look in gloves. 
On his partner: his gaze is always drawn to their mouth, for some reason? (Oh, he knows the reason. That is a magic mouth.)
Q = Quickie (Their opinions on quickies rather than proper sex, how often, etc.)
He likes them for the moments where he needs his partner right away, but much prefers to really take his time with them and get the aforementioned extended cuddle sesh afterwards. 
T = Toy (Do they own toys? Do they use them? On a partner or themselves?)
No, but he’s thought about it. 
V = Volume (How loud they are, what sounds they make)
Not actually loud volume-wise, but makes a lot of little noises, also like he’s trying to say something but is so overcome with pleasure that he can’t. He does moan pretty loud when he climaxes, though. 

E, J, L, O, R for Undyne. – Flurry.

E = Experience (How experienced are they? Do they know what they’re doing?)
Not very, but enough that she knows what she likes. 
J = Jack Off (Masturbation headcanon)
She’s too busy. (…she does it very rarely.)
L = Location (Favourite places to do the do)
She has a few favorite places around Waterfall, but she’s not super picky. Just somewhere private. 
O = Oral (Preference in giving or receiving, skill, etc)
Prefers to receive because she’s scared of hurting her partner with her teeth and that’s the last thing she wants (she’s very enthusiastic about fingering, though!)
R = Risk (Are they game to experiment, do they take risks, etc.)
This is one of the least risky things she does, actually. Experimentation is a go, but nothing too crazy, you know?

D, F, J, X, Y for Sidon. – Flurry.

D = Dirty Secret (Pretty self explanatory, a dirty secret of theirs)
He’s fascinated by humans and how different they are from him, to the point that actual scientific comparison kind of turns him on just because he’s so busy thinking about his partner
F = Favourite Position (This goes without saying. Will probably include a visual)
See, sharkskin is super rough, so there are very few “normal” positions he and his partner can comfortably get into. He’d like to have them on his lap. but straddling him requires their inner thighs to drape over the outside of his…. ouch. He tends to just open his legs and let his partner get comfortable. It’s no fun if they’re in pain, after all (but when they aren’t in pain? It’s very fun)
J = Jack Off (Masturbation headcanon)
The Prince cannot do such a thing (… unless he’s by himself in his resting pool, staring up at the stars and thinking about his partner)
X = X-Ray (Let’s see what’s going on in those pants, picture or words)
I AM A BIOLOGY MINOR HE HAS CLASPERS
Y = Yearning (How high is their sex drive?)
Not crazy high, but he has his moments where he drags his partner either into his sleeping pool or behind a wall and is like “please, pearl in my ocean and moon in my sky, I need your body against mine.” also ruts are sort of a thing, and pheromones to some degree (he’s very attentive to any female’s partner’s hormonal fluctuation because he can smell the changes on her)

J, K, M, S, T for Terra. – Flurry.

J = Jack Off (Masturbation headcanon)
Sneaks off to do it semi-frequently, but is done pretty quick, so people don’t tend to have noticed his absence before he returns. 
K = Kink (One or more of their kinks)
Bondage. He didn’t expect to be into it, but…
(He prefers having his partner bound, but feels… surprisingly secure when he is)
M = Motivation (What turns them on, gets them going)
Lingerie. He likes seeing it on, he likes taking it off.
S = Stamina (How many rounds can they go for, how long do they last…)
Can go for up to three rounds, then he is too tired to continue. Lasts longer than he does on his own by a couple minutes. 
T = Toy (Do they own toys? Do they use them? On a partner or themselves?)
He doesn’t own any, but he wants to, to use on his partner. 

C, J, K, P & T for Axel. – Flurry.

C = Cum (Anything to do with cum basically… I’m a disgusting person)
He likes seeing it dripping from his partner, either down their legs or off their chin
J = Jack Off (Masturbation headcanon)
Doesn’t do it often, but has a vivid imagination to speed him long when he does (he fantasizes about his partner, mostly)
K = Kink (One or more of their kinks)
He is so into biting and marking his partner. There’s no escaping sex (or even an intense makeout) with Axel without at least one prominent hickey.
P = Pace (Are they fast and rough? Slow and sensual? etc.)
He’s normally fast and rough, but the times he takes it slow lead to some really intense orgasms and are multi-sensory experiences.
T = Toy (Do they own toys? Do they use them? On a partner or themselves?)
Owns a few, uses them mostly on his partner, but has tried them on himself, just to see (at least sort of) what it must feel like for them.