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#cw.stomach bulge
bokutoslittlebird · 3 years
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Request: Ushijima with his little twin sister in which they never want to be apart from each other because of their abandonment issues because of their father. So they agreed that they never leave each other's side never let anyone have what they have, which included romantic {and sexual} activities.
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I didn’t know what kind of twin you meant but I don’t usually do twin reader x twin characters because, well, some people may find it hard to immerse themselves, but I did it this one time. Just for future reference.
Warnings: incest, naïveté (both parties), size kink, creampie, pussyjob + thighjob, implied tummy bulge
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Toshi-Nii Drabble
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With him, you had your first in everything. With you, he had shared his firsts with you.
Whether it was your first birthday on this moving rock, your first words, your first day at school, your first kiss, your first.. lover, a time shared between siblings that never felt wrong. Without Wakatoshi, you’d be empty. He’s there for you everywhere and anywhere.
He feels the same about you, finding your charm and sweetness infectious when it comes to others, as well as being envious. They always told him how great it’d be to have such a close connection with their own sibling, but he never really knew what the difference was. Why were you two inseparable when other sibling duos weren’t? Was it the closeness in age? He thought that was probably it.
Neither of you knew, and nobody else knew, that normal sisters don’t go to their brother for advice on their body, and normal brothers don’t kiss their sisters before a match, claiming it brings them good luck. Whenever you two needed advice, help, or just company, it was never to turn away from each other but rather to each other. A way that made you both closer than ever before.
You’d never forget your first kiss. Feeling inexperienced because all the girls you would hang out with had boyfriends, kissing and sleeping with them and bragging. Turning to Wakatoshi, you asked him if he had his first kiss. When he said no, you asked if he could give you yours. It was full of innocence, completely curious as you pressed your lips against his. You didn’t know what to do, but neither did he. This opened a new path, you both exploring the areas of kissing and how good it can feel.. until you’re craving for more.
The first time you two slept together, it was a train wreck. You didn’t know your body and Wakatoshi was powerful and didn’t know he had to hold back on your body. You were immovable for the next two days, the feeling in your hips and legs numb. But this opened a new door for the two of you. Together, you both could learned each other’s bodies as well as your own.
“Nii-chan, don’t be so rough with me,” you giggle, looking down at Wakatoshi’s hands, his grip on your hips harsh. His grip immediately loosened, his hard cock rubbing between your slick thighs, against your puffy pussy. With each pump of his cock between your legs, he was lubing himself up as well as getting you aroused. It was a gentle way of foreplay, getting you both aroused without too much work.
“Sorry,” he mumbles, running his hands in a soothing circle on your hips, only to have them move up your body. Gentle caresses that left goosebumps in their wake, you sigh breathlessly at the feeling. Enjoying the mood and pace he’s set, your hands move to his hair as you gently scratch at his scalp, something you do when he can’t sleep at night. “I think you’re ready,”
“Mm, okay,” you buck your hips as his cock leaves your thighs, now cold with nothing against them. Letting yourself drop onto the bed, you push your ass back onto his cock, him being gentle as he pushes in your cunt. It’s always a tight fit, his size dwarfing you and his cock bigger than you’ve ever seen in porn videos. It spreads you open so well, the pain overridden by pleasure immediately as he brushes against your gummy walls. “Nii-chan,”
“I’m here,” is all he says, keeping a grip on your hips so you don’t move. He refuses to let you move too much until he’s just rocked all of his length into you. When he does finally bottom out, he always knows by the wistful sigh that leaves your lips and your hand moving to your stomach, seeing if you can feel him inside of you. Once he’s bottomed out and you’re squirming, he doesn’t need to hold back. Pulling out until only his head is in, he pushes himself back in at a gentle pace to continue spreading your walls.
Soft moans leave your lips, hands digging into the pillows as your head is turned to the side for air, letting him hear your moans. “‘S good, nii-chan. More,” you beg, wiggling your hips as you try to move back. Leaning over you, his arms resting beside your head, completely covering your body, he leans down to your ear.
“Of course, dear,” he grunts, picking up the pace as your grip on the pillows tighten, head thrown back as you scream. He puts his mouth on your exposed neck, licking and sucking on the skin while one hand of yours threads into his hair. Keeping him against your skin, you curl your toes as your high washed over you, a scream and a tight squeeze on his cock. His thrusts pick up the pace, chasing his own high now as his balls slap into your cunt, numbing the skin and wet clapping sounds echo in the room. Your sensitive cunt gushes around him as you feel him get bigger, his cum filling you up seconds later as he ruts against you, making sure you milk him.
As he goes to pull out, your grip on his hair tightens. “Don’t leave me, nii-chan. Just.. stay inside me for a bit longer, please?” Pressing a kiss to the back of your head, he maneuvers you both on your sides. He’ll make sure to clean you up when you’re ready, but he’s content to just stay like this.
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