Context: (Reader) and Tamaki have been dating for around three years. Tamaki, despite being a very submissive and agreeable guy outward, can go from 0 to 100 REAL quick 🤭
It was the last period of the day on a Friday, so students would finally be free for the weekend. After the teacher finished the lecture they were giving, everyone had already started packing up, including you and Tamaki. He had asked earlier if you wanted to spend the night in his dorm and you obviously said yes, so after you had all your stuff in your bag, you ran up to Tamaki and grabbed his hand as he started walking you to his dorm.
After you got into Tamaki's dorm room, as you walked ahead of him to set your stuff down and change your clothes, he slyly locked the door behind him. He walked over to his dresser and took out his pajamas, changing in front of his bed while you changed in the bathroom. He sat on his bed and waited for you to finish up in the bathroom, fidgeting with his hands nervously.
When you finally came out of the bathroom, Tamaki immediately stood up and wrapped his arms around your waist. He was being extremely needy and clingy all day. "Need you.." he muttered under his breath, nuzzling into your neck. He gently ran his hand across your waist, looking into your eyes with the gentle look he gave you when he was in the mood. When you didn't respond immediately, he dropped to his knees in front of you, gripping your thighs firmly but not roughly. He gave you tired puppy dog eyes, he cheeks and nose completely red. "Please.." he whimpered out, resting his chin against your tummy and caressing your thighs with feather light touches.
You could never resist his begging, he just looked so adorable on his knees. When you said yes and gently ran your hand through his hair, he let out a shaky breath and stood up, carrying you over to the bed bridal style then setting you down gently. He got onto his knees in front of you, and gripping your thighs gently, he started teasingly running his tentacle-like tongue along your inner thighs.
To tease you further, he lifted your shirt a bit, planting gentle kisses along your tummy. Watching your eager and encouraging reactions, he started slowly traveling down again, eventually pulling your pants off, along with your underwear. He chuckled at how flustered you looked, before teasingly running his tongue along your soaking entrance. He felt your hand tangle into his hair, which made him smile. He gripped your hips so you couldn't move, and without any type of warning, plunged his tongue inside you.
He heard you gasp and felt your back arch, which made a grin spread across his face. He held you in place as he fucked you with his tongue, enjoying the soft, encouraging noises you were making. He knew you were getting close by your squirming and high-pitched noises, so he pulled his tongue out and looked up at you with a smug, teasing grin. He ran his tongue along your entrance again, and when he reached your clit, he began to slowly circle it with his tongue.
He knew you were nearing your climax despite his constant, relentless teasing. He let out a soft hum of satisfaction before taking your clit between his lips and sucking, hard. He smiled around your sensitive skin when he felt your release flood his mouth. He swallowed, instantly and eagerly, keeping his mouth against you until you completely rode out your orgasm.
After he was sure you were done, he pulled away and looked up at you with a mischievous smile, wiping his mouth with the back of his hand. He chuckled at your flustered reaction, before standing up and sitting behind you. He rested one of his hands right beneath your breast, using the other to teasingly trail down your body. His fingers brush against your hyper-sensitive clit, making you shiver.
He chuckled before gently pressing his lips to your neck, using one of his many tentacles to tease your entrance. "You're soaked, Baby..~" he whispered, before lifting you slightly and gently pushing his hard length inside you. He lets you adjust to the feeling, whispering soft, loving praises into your ear. After you gave him the green light, he started at a slow, gentle pace. He kept that steady rhythm for a bit, and would only go faster or harder if you asked him to.
Eventually, he slipped one of his tentacles up your ass, using another one to rub your clit in circles. He didn't start moving his tentacle until he knew for sure you were ready, and still keeping a slow and steady pace, he started thrusting his tentacle in and out of your ass.
He started gently squeezing and massaging one of your breasts, keeping his other hand resting on your tummy. He knew you were getting close to another climax, and he was too. He sped up a bit, letting out soft noises as he started getting a bit rougher with your body.
After a few more thrusts, Tamaki held you against him, letting out a soft whimper as he spilled inside you. His seed flooded your unprotected womb, making you both cry out in pleasure. "Fuck.. baby.." he whimpered out, nuzzling into your neck again.
He started planting soft kisses along your neck and shoulder, gently caressing your body as you both basked in the afterglow of such an intimate moment.
He gently pulled out, then repositioned both of you so you could cuddle. You were facing each other with your legs tangled together, his arms around your waist and yours around his neck. Your foreheads were pressed against each other. The two of you cuddled up, the only noise in the room is your soft breathing. You and Tamaki, without bothering to get dressed, eventually drifted off to sleep in each other's arms.