Poly Miu iruma and Kaede akamatsu with a shared boyfriend who loves being around them and loves affection.
[On a couch, Kaede sits comfortably on Y/N's lap while she's holding onto Y/N's chin while giving him soft kisses on his cheek. Y/N blushes and wraps his arms around her stomach]
Kaede : Chuckles, You certainly know how to stay still ^v^✨
[Y/N seriously couldn't help but blush and tightens his arms around her, keeping her close]
M!Reader blushing : K-Kaede...
[Kaede giggles, leans again and kisses his cheek]
Kaede : You’re too cute when you blush
[Just as she leans in to kiss his cheek again–A loud thump of a heel stomp onto the floor suddenly happens, they both look to the side and see Miu walking straight at them]
Miu : Oh my god–What the hell is this?! Why are you two being disgustingly wholesome out in the open?!
[Kaede just smiles sweetly]
Kaede : Are you jealous?
[Miu shot upright immediately]
Miu : W-WHAT?! As if! The great genius inventor Miu Iruma doesn’t do jealous!
M!Reader : But... You also give me that out in the open–
Miu : That's different idiot, I don't do that vanilla bullshit!
M!Reader : ...How is that any better–
Miu : Because I'm showing you fully how I would do to you or how I feel about you, THIS?! this right here?
[Miu shows off her hands and gestures towards the two]
Miu : It's just indecently boring!
M!Reader : ...
Kaeda : ...Indecently boring?
[Y/N thought 💭]
…Oh but when you literally grabbed my face and kissed me in front of everyone yesterday was okay–
Miu : Yeah! it's lame! It's that mushy mushy romance crap! Move over, let me show you how to actually give this romantic degrading addict!
Kaede : You know you can just sit next to us–
Miu : You really fucking think I'd just squeeze in there like some desperate third wheel?!–
Kaede : But you're NOT a third wheel
M!Reader : You're literally in a relationship with both of us–
Miu : Okay piano tits, move over!
[Miu quickly grabs onto Kaede's hips, lifts her up, lays Kaede on her arms, and plops her down next to Y/N before–immediately sits down on his lap upfront]
[Miu puts Y/N's face between her breasts, blushing Y/N even redder. Miu doesn't say anything and just laughs, seeing him blushing redder. Kaede sits up beside them both and pouts]
[Miu starts caressing his hair]
Miu : There, there, let these genius breasts straddle you into the feeling of wonderment~
[Y/N's entire body shaking]
Miu : See? THIS is how you properly overwhelm a guy!
[Y/N’s muffle voice comes from somewhere in the middle of the situation]
M!Reader blushing : M-Miu—
[Miu laughs]
Miu : Oh relax! You like it, don’t you?~
[Y/N doesn't answer, mostly because he can't breathe properly right now]
[Kaede slowly leans closer, resting her cheek in her hand]
Kaede : ...You know
[Kaede says sweetly, making Miu look over to her]
Kaede : You're jealous
[Kaede smiles innocently, making Miu froze]
Miu : I AM NOT!
[Miu backs up and points at her, making Y/N gain his consciousness back]
Kaede : Then why did you pick me up and steal his lap?
Miu : I didn’t steal it! I just improved the situation!
[Y/N and Kaede stares at Miu before staring at each other, exchanging looks. They both smirk, which Miu notices immediately]
Miu : What are you two–?!
[Kaede and Y/N quickly leans in and gives Miu a kiss on each cheek at the same time. Both chuckle afterwards, making Miu blush instantly]
Miu blushing : W-W–WHAT THE HELL IS WRONG WITH THE TWO OF YOU!
[Kaede giggles]
Kaede : You knew what you were getting into with us~