Chapter Text
Itadori Yuji brought out feelings in Megumi that he didn’t even know he could have. His sweet peach and honeyed scent always lulled him into a feeling of safety and satisfaction, draining a tension in Megumi’s shoulders he didn’t even know he had. Yuji was tactile in a way Megumi had never been, too concerned with protecting himself and Tsumiki to give into his own omega instincts. Yet Yuji never looked at him in pity or disdain. When Megumi had confessed to not being a good cook, Yuji looked at him with those soft brown eyes before he shyly offered to teach him a meatball recipe. It was then - the two of them sitting at the table shaping meatballs, pleased omega pheromones filling the room - that Megumi realized the extent of his feelings.
Megumi wasn’t under any delusions that this was normal. Omegas weren’t supposed to want to pull pleased sweet scents out of other omegas. Sure, they should enjoy omega cuddles with others in their pack, but wanting to kiss another omega? Lick and nip at their scent glands? Worse, pound into them until they hiccupped and sobbed your name? No, none of this was normal, but god if it wasn’t what Megumi wanted.
More than his own unusual desires, Megumi was scared what Satoru would think. From the moment Megumi’s scent turned sweet as he presented, Satoru lashed out at any alpha whose gaze lingered over him too long. It wasn’t even more than a year ago that Satoru had gone so far as to maim an alpha over him, the yakuza member attempting to pin Megumi against a wall on their mission. Satoru was possessive, and while so far it had only been against other alphas, Megumi was terrified at what he could do to someone as gentle as Yuji. Worse, Yuji looked at Satoru like he could do no wrong, constantly talking about how amazing their sensei was. Megumi couldn’t begin to imagine what Satoru would do if he realized how much deeper his feelings for Yuji ran.
***
Megumi got his answer just two days later. Ever since Yuji had moved back into the dorms, he’d insist to Megumi they needed to make up for lost time, barging into his room and putting on a movie before curling into Megumi. As they watched some dumb American movie about about long lost twins reuniting their parents, Megumi warm with the pleasant weight of Yuji’s head on his shoulder, their sides pressed together as a close possible, they could suddenly hear a deep alpha croon, singsonging “Me-gu-miiiii~.” Megumi stiffened as the door to his dorm swung open. Satoru walked in, wearing those stupid sunglasses, hair down. As much as Megumi was loath to admit, he looked so handsome. Clearly Satoru wasn’t expecting Megumi to have company as he paused in the doorway, smile faltering.
Megumi could feel the purr Yuji let out before sighing out “Welcome back Gojo Sensei.” Satoru’s grin grew impossibly wider, alpha chuff rumbling in his chest. Megumi hated the way he could feel both himself and Yuji go boneless in response.
“How cute! My favorite little omegas all curled up! You both look so cozy.” Satoru tilted his head down so that his crystal blue eyes were just visible above his glasses. Megumi could see the heat behind those eyes but the intensity wasn’t anything Megumi had ever seen before.
“Can I join in?”
Beside him Yuji giggled. “Of course not Gojo Sensei! This is omega only time.”
Satoru gave Yuji an exaggerated pout before whining out loudly. “My cold students, no love for their Sensei. I bet you didn’t even miss me.”
“Of course we missed you Sensei! Megumi and I even made you dinner! It’s in the common room fridge!”
At that, Satoru’s stance went rigid, and though his eyes were covered, Megumi knew he was staring at them with an incredulous look. In all the time that Megumi lived under his roof, he had never cooked a meal for Satoru, refusing to let him think that his forward advances were accepted.
Megumi could see the deep bob of Satoru’s Adam's apple before he licked his lips, voice deep and strained as he replied “what good omegas.”
***
Satoru caught him on his way to the bathroom four hours later, crowding him against the hallway wall, chests flush against each other. Megumi could feel Satoru’s arousal through his pants and bit his cheek as he could feel himself start to slick.
“Naughty omega, spending all these years rebuffing me, acting like you didn’t want this, insisting you didn’t want to be a traditional omega. But now you’re making me dinner?”
Megumi glared. “You know that isn’t-” words trailing off into a sharp gasp as Satoru cupped his ass and squeezed . The stupid white haired alpha lowered his face into the crook of Megumi’s neck, boldly licking at his scent gland. Megumi could feel the heat growing in his belly as the scent of vanilla grew stronger with his arousal. Fuck.
“You know, I put off claiming you because I thought I needed you to break you down some more. Little did I know you were plenty amenable.” That damn pervert was teasing his claiming fangs over his scent gland, Megumi’s knees giving out under him as he collapsed onto Satoru.
“Though I wasn’t expecting my little wife to have a crush~”
Megumi felt himself go rigid in fear. Satoru kisses a light kiss to his gland, and he can feel the smirk on his lips before the alpha raises his head.
“Megumi, look at me.”
Slowly, he meets Satoru’s eyes. Instead of the rage he’s expecting to see, Megumi is greeted with a mix of amusement and lust,
“Yuji’s such a good influence on you, hmm? You’ve gotten so soft and cuddly ever since I brought him.” Satoru cups his face, bringing them so close their lips brush against each other.
“So good, my sweet omegas.” Before Megumi can let out a gasp, Satoru licks into his mouth, catching the sound. His other hand reaches down to Megumi’s crotch, rubbing at his slicking folds.
Satoru breaks their kiss before mouthing at his neck again. He’s made short work of Megumi’s pants and panties, fabric pooled at Megumi’s ankles, clever fingers teasing his engorged omega cock standing proud at the top of his slit.
“Hmm, should I claim him too Megumi? Yuji-chan is so cute, following me around, cooking for us. You looked so soft cuddling with him, such perfect omegas.” Megumi’s panting as Satoru runs his finger tips against the base of his cock. “You’d be so cute, curled up in your nest after I knock you both up. Imagine Megumi! Your swollen bellies as you cuddle. I’d keep you both so full, my little broodmares.”
Megumi knows it’s wrong. He shouldn’t let this alpha who practically raised him claim him. Omegas shouldn’t long to claim other omegas as their own, but at Satoru’s prodding and filthy words, his mind and body betray him. He can picture it so clearly, Yuji looking up at him inside their nest, eyes soft as they rub each other's bellies and kiss. The way Yuji would whine as his teats start to milk, the gasps he’d let out as Megumi suckled and pinch.
The final blow comes as Gojo whispers in his ear. “Maybe after the first litter I’d let you have a turn with Yuji, hmm? You’re so big ‘Gumi, I know you could do it.” Megumi shrieks, the image too much as his orgams reaches him, omega cock squirting onto Satoru, mind numb at Satoru’s validation of his desires.
“All of it can be real Megumi, if you bring him to us.”