A/N DO NOT READ IF NSFW MAKES YOU UNCOMFY

nobody's pov

nejire ran up to you, bouncing happily. "HIIII Y/N!" she giggled as mirio and tamaki flollowed shortly behind her. "h-hi y/n..." tamaki mumbled, looking down as usual. mirio putting a hand on your shoulder, his other hand making a thumbs up "You've toGATA smile more tamaki!" you laughed at his joke and mirio rubbed the back of his head "see! i am funny!" man were these two dorks the loves of your life. dating for.. almost 6 months, tamaki wasnt big on pda but sometimes would interlock pinkies with you. mirio liked to show off you two were his and often kissed your head and carried you around, tamaki always just blushed and hid his face whenever he'd do that. but you were tired of just spending nights watching movies with them, getting soba at your favorite shops, playing around with each others quirks to make the other laugh when they were down. you wanted to show your affection to them in its purest form.

sex.

you knew mirio was alright with you doing it but tamaki always chickened out at the last second, and you two didnt wanna do it without him. it was gonna be something you only did together. not like mirio and your secret quirk training sessions, that you always told tamaki about so he didnt feel left out, or you and tamaki's secret 1am walks. so you wated impatiently for the day to end so you and mirio could finnaly push tamaki over the edge, you two both being in on it. him giving you winks throughout the day, tamaki confused.

~time skip~ 

you and mirio had snuck out of the 3-b dorm building and he gave you a thumbs up "ready, Y/N?" "ready, miries~" "haha, i love that nickname so much" "i know you do, now lets go before people notice we're gone." mirio nodded and scooped you up, running towards the 3-a dorm building. mirio promptly putting you down before sneaking inside, and opening tamaki's door, he always left it unlocked incase you or mirio wanted to visit him. mirio slinking over to his bedside and nudging tamaki awake. "eh? mirio? y/n? why are you both here?" "to convince you." you  both said simultaneously. "c-convince me to- oh. t-that? y-you both r-really wanna do t-that. huh?" "we do tamaki. we want to show you how much we really really love each other." you slid off your coat and hung it on a hook, taking mirio's as well. "mmm, you both are so convincing.. but what if i do bad?" "its likely we will to tamaki, we've all never done it before. besides, there a lemillion people on earth and we both chose you. eh, y/n didja get my pun? lemillion, million?" "yeah, i got it mirio." tamaki got off the bed while you two were talk and kissed you both gently. "okay. ok. i-i'll do it." *tamaki took off his night shirt, letting out a small sound when you and  mirio did the same. then nodding at mirio he pushed you onto the bed. "you see. me and mirio. we decided that when i finally agreed, we'd make sure you were the main focus" he mumbled to you, as he ran his hands over you, mirio giving you kisses on your face and neck. "thats right. tonight isnt about tamaki, its allllll you." tamaki hesatantly turned his fingers into some tentacles he ate from eatlier and slipped of your sleep pants, then moved down. "tamaki. mirio. wait." they both stopped "no further until you're as undressed as me." tamaki and mirio blinked before sitting up and tugging off their pants, before going right back on you, tamaki slipping his tentacles over your body, to cover spots just him and mirio couldnt cover alone. "nmf. mirio. tamaki..." they both chuckled quietly and mirio slowly slid to tease your breasts, not the biggest, but they were so happy with them anyway. mirio unclipped and slid of your bra, massaging them gently. "tamaki, dont be afraid to do more~" tamaki looked up at you and slid all k=his tentacles back, before sliding off your panties and sliding on against your clit gently, cause a mewl to escape from your mouth, them both looking up at you in shock "that.. wow." "oh man, i made you do that?" they both gasped out quietly, tamaki smiling and pushing his tenta-finger inside you, making you grab onto mirio's arm, with a louder gasp. "haha. dont grab too hard. and quiet down. we cant be getting caught." you nodded and put your hand over your mouth, muffing your sounds as tamaki toyed around with your insides. his finger wiggling around, pushing on spots a normal hand couldnt reach. "tamakiii.." "cant let tamaki be the only name you call out~" mirio chuckled and reached down to massage your outside, tamaki watching your face. smiling softly. you shreiked out against your hand, still pretty loud, causing mirio to freak out nad put a hand over your mouth as well. all of you freezing an dhoping nobody heard. after a few moments passed by you sat up and pusshed them both off, confusin them. "y/n? what are you doing?" you ingored them and just hummed as you tugged off both of thier pants, running your hand along both of thier dicks, causing them both to gasp out. "y/nnn." "haha... y/n." mirio and tamaki traid to stop you but you batted thier hands away, so mirio simply permiated through the floor, out of your reach. "miriooo!" mirio popped back up behind you, grabbing your side and leaning up to your ear. "we wont be the only one to feel good in this situation. may i take you?" you felt a shiver run down your spine, and nodded silently, mirio nibbling you ear gently, wrapping his arms completly around you, a hug, before slowly pushing his cock inside your cunt, hugging you tighter as he gasped out. "oh man. sunshine." mirio sometimes called you sunshine, but now it felt so much more sweet. you both sat there for a bit as tamaki looked at you both sweetly, waiting for you to regain yourself so you could continue. 

after a little while you began to move your hands on tamaki again, mirio moving in you slowly, still hugging you. tamaki wrapped his tentacles around you once more and rubbing you and mirio gently, his eyes hazed over, completly unfocused. mirio help onto you as he kept mumbling sunshine over and over, speeding up a bit. you shivered as the rope in your stomach got tighter and tighter. all of you no longer caring if you were loud you all just did what felt right. mirio sped up a little more and got a little louder with his sunshines. you all then held onto each other as you climaxed all together, huffing out each others names, as you rode out your orgasms. before mirio pulled out and grabbed you two for a snuggle. "oh wowie. that sure was fun... i love you two. a whole lot"

a/n i hope i did good, havent done anything nsfw in a real long time.