It's here! The highly requested NSFW Poly!KiriBaku x Fem!Reader headcanons with mini scenarios. All characters written here are aged up to be adults in their early 20s to 30s.
TW⚠️: Mentions of size kink, breeding, impact play, anal/ass play, toy usage, scent kink, praise kink, orgasm control/denial, overstimulation, voyeurism, degradation, biting kink, pillow princess, aftercare. Let me know if I missed any!
You were all equally parts shy and excited about exploring the physical side of your relationship when it first began.
Kirishima and Bakugou obviously had more in common, anatomically speaking, but they were nervous about which of them would bottom first. Bakugou claimed that his ass was an exit only, and Kirishima was equally as frightened by the idea of something so new, foreign, and a little taboo.
Instead of putting all the pressure on the two men to decide something without having any experience with it, you volunteered to start as the first receiver. This worked because you got to selfishly indulge in being the center of their attention while they both got to explore their own sexuality and autonomy.
It wasn't long before a rhythm was set between the three of you, with you as their bottom and them as your tops. This was great for a while until you began to crave a shift in your dynamic.
You loved being their bottom, but you were a switch at heart, and you yearned being able to take the reins and have your way with them.
When you initially confronted them about it, they were on board until it came time to actually preform the acts; both heroes a little shy and unsure.
After a while of debating between the three of you, Eijirou stepped up and offered himself. He confessed that he had an inkling that he may be a switch as well but he was too ashamed to admit that he, The Manly Red Riot, wanted to be treated like a pillow princess or slapped around sometimes too. You and Katsuki were of course having none of that, giving the red head a safe space to explore his sexuality and body.
In doing so, you both also managed to shift Katsuki's perspective on himself and his own relationship with his body.
Now being in your late twenties as adults, you all identified as switches. Katsuki prefers to remain a top most times, but he will on occasion submit to you and Eijirou, allowing you to have you both to have your way.
Sometimes one of you would top while the other two bottomed and other times two of you would top and only one would submit.
That being said, you all spent a lot of time figuring out what worked for each of you and what didn't.
Kirishima's kinks:
Size kink- He had a humongous growth spurt during his third year in high school. He went from being 5'7" (an inch shorter than Katsuki) to a whapping 6'5" what felt like overnight. He's even a couple inches taller than that now as full grown adult He loves that he's bigger than you and Katsuki. It makes him feel super masculine and manly.
Breeding kink- He loves to pump you and Katsuki full of his seed and watch it seep out of your holes. It makes him feel like his claiming the two of you as his.
Scent kink: He loves yours and Katsuki's scents; you smell of herbs, flowers and fruit while Katsuki has a spiced burnt caramel because of his quirk. If he doesn't smell like the two of you combined by the time you're all finished, then you're not finished. He also loves making you and Kats smell like him, this goes back to him laying his claim to you.
Impact play- As much as he loves putting you and Katsuki over his knee, he also loves being smacked around quite a bit too. Although he can take a lot more than you and Kats because of his quirk.
Anal/Ass play- Again, he loves being the giver just as much as a receiver. Sometimes, he just wants you or Kats to fuck him until he forgets about everything for a while. You got him a monster cock (that can be added to a strap on) for his birthday a couple years back and it's now one of his favorite things to have used on him during scenes or when he's by his lonesome and feeling horny.
Toy usage: You were definitely the one to get him into this. He had no idea such wonderful things existed before you. He now won't let you or Katsuki do a scene without at least one. Whether it's a butt plug or a vibrator of sorts; either your sucking rose or a hitachi wand, he won't do without one. Unless one of you is seeking soft, meaningful, slow sex, only then does he let up.
Praise kink: It's pretty self explanatory, but ya boy likes to be praised. It makes his heart sing and his chest radiate heat when you and Katsuki tell him what a good job he's doing and how good he is, even if you're not engaged in sex.
Bakugou's kinks:
Orgasm Control/ Denial: He loves to make you and Eijirou total pleading messes before letting you cum. He also loves watching your reactions when you do finally cum. You're so fucked out, you don't care that you're drooling everywhere and screaming with pleasure. He once read a study that claimed that the longer you are kept in an aroused state the better it is for you health. He'll claim that he's doing you guys a favor and to an extent he is, but he's really just getting on you not getting off. It makes him feel powerful.
Overstimulation: This plays into the orgasm control. While he does overstimulate both you and Eiji, he does have a tendency to focus more on you since you are able to have multiple orgasms back to back without going dry. Katsuki will mock you about how before you did nothing but beg him for your release and now you're begging him to stop. Well, it's too bad because now you get to stop cumming until he decides you're done.
Voyeurism: He loves to watch you and Eijirou fuck. Sometimes, you'll call him while he's out and ask if you and Eiji can do it, but he'll ask you to wait until he gets back. He'll be leaned back in his big leather recliner with a glass of scotch in his hand, taking a sip every now and again, but never looking away from the scene before him. And when he's away on long trips or missions, he'll video call you and jack off to watching and listening to you and Kiri getting off (Read that here🤭)
Degradation: This one was a bit weird for you guys to figure out at first. You didn't like it when Katsuki called you a slut or a bitch, getting teary eyed and choked up when he would. Eventually he figured out calling you his slut and his bitch had the wanted affect on you. Kiri didn't really like being talked down either, preferring to praised as well. But in the middle of a scene when Katsuki had the red head arch his ass up in the air for a spanking, he'd shudder in delight at being called a bad boy, moaning in agreement that he was indeed a bad boy that needed more punishment. Katsuki also liked to be degraded in the bed room. He loved when you'd mock him calling him pathetic and weak while Eijirou fucked him so hard his eyes crossed.
Biting kink: Kats loves to be bitten, especially by Eijirou. Your smaller and sweet love bites are wonderful, don't get him wrong, but Eiji's shark-like teeth just pierce him in a way only the red head can pull off. He proudly wore his partners' marks on his body like badges, snickering when other heroes would gawk and make comments about his marks in the locker room.
Katsuki is also into Impact play and Anal/Ass play like Eijirou, although, he does prefer to be on the giving end of those kinks rather than the receiving end. That being said, he will allow you and the red hero to smack him around and mess with his ass on occasion. The older he gets, the less he minds if someone else takes over.
Now for some spicy scenarios!
You personally love to be treated as a pillow princess most times, loving their undivided attention on you. Although at times it was more a curse than a blessing, especially if your tops were in a mood. Katsuki would make sure that he and Eijirou had made you a blubbering, sobbing mess before the end of the night. Your poor clit swollen and sensitive from all the unrelenting attention it had received and your holes wonderfully tender and sore from being stretched, slapped, and pounded. You're almost always sore the next day, but it's a welcomed reminder of how loved and cared for you are.
On other nights, when you have the carnal need to be dominate, Eijirou will always offer himself as tribute. He loved being manipulated by your delicate and feminine, but terribly cruel hands. Sometimes the red head would purposefully act out to get you to punish him.
Those nights, you'd either sling him over a piece of furniture and beat his ass red with your favorite paddle(read that here😈) or you'd deny his climax until he pleaded and sobbed for you to let cum, wailing that he finally saw the error of his ways. On other nights, you would slowly and sensually pick him apart, doing all of his favorite things and cooing praises at him, until he became a puddle of goo in your hands, blabbing about how you are his Goddess and he doesn't deserve you.
Katsuki will happily sit back and observe the more intense scenes between you two, but sometimes, you'll ask him to do you bidding instead. You'll be sat on the blonde's beloved recliner, it's seer size making you look like a little ethereal fairy upon it, especially while decorated in your white, rhinestone embedded lingerie and your long sheer robe draping elegantly over your feminine curves. A crystal glass of rose' in your hand that you swirl and sip from time to time.
Grinning menacingly as you watch Katsuki fuck the poor red head within an inch of his life, spouting off orders to 'hit him here' and 'don't let him cum yet'. You'll come down from your throne and join the fun, eventually. Ordering the sturdy hero arch his reddened and beaten ass into the air, so you can grace his swollen hole with your tongue. Sometimes you'll even graciously grant his request of stepping on him with your shimmery stilettoes, even going the extra mile of pressing the tip of your heel into his hole and pushing it in until it cant go any further.
But nights where Katsuki let's you and Eijirou have your way are by far the most anticipated because of how rare they are. You and the red head take turns picking him apart, sucking at his cock and pinching his sensitive tits while finger fucking his asshole until it's spread enough for your strap on and then finally prepared for Eijirou's monster sized dick. The noises the blonde makes, you both agree, are heavenly. The way his ruby eyes roll back into the back his skull when he climaxes from being only touched from the back is a sight that is otherworldly.
Aftercare: The type of aftercare you all preform/receive is dependent on the scene that preceded it. If it's you that bottomed, the heroes will gently press kisses into your skin and shower you with praises while preparing a bubble bath for you. They'll soak you in the fragrant, sudsy concoction while rubbing you down with wash cloths and feeding you pieces of fruit. One of them will always stay by the tub, resting a hand against your extended ankle or calf as physical proof that they are still present.
If it's Eijirou that was the center of attention, you'll clean him up in a bath while Katsuki cooks up some of the red head's favorite marinated meat. You'll pull him from the tub, dress him in some comfy clothes and wrap a heated blanket around his hulking figure, leading him to the couch for a movie and food (either dinner or a late night snack, depending on the night).
If it was Katsuki's turn to be the focus of your affection, he just prefers to rest and snuggle. Eijirou will either wipe him down with a cloth or give him a quick rinse in the shower, depending how messy or intense the scene was, while you change the sheets. The red head will carry him back into the bedroom like a damsel and set him on the bed and press kisses all over the blonde until he starts to grumble about being too tried to deal with all that. You'll roll your eyes and slip under the fresh sheets with your lovers and snuggle up to the grumpy man while Eiji does the same, eventually drifting off into a deep, restful sleep.
If feel like this was a little all over the place, so my apologies if it was hard to follow, but I enjoyed writing this one.
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A very special thanks to @dreamcastgirl99 @neon-gothicc and @theyslaydemons for helping me come up with some of these headcanons and scenarios. You guys are the best!
Sweet peas: @the-weeping-author @millennialmagicalgirl @dcsiremc @dreamcastgirl99 @katsuslover @neon-gothicc @jazzafayesworld @trickster-kat @ayustuff
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