Nothing wrong with it
“Ow.”
“I am satisfied with my care!”
Tadashi watched as Baymax once more deflated, not even able to leave his storage this time. “I can keep this up all damn day, Hiro. I have less to say.” He sneered down at his brother.
He was not going to budge on Baymax staying at home. He had already discreetly programed in some silent scans and monitoring habits he wanted his creation to do on his brother. A breach of privacy sure, but it was for his own safety. His stupid little brother getting himself into trouble like he always did.
“Ow.”
“I’m satisfied with my care!”
Tadashi had held Hiro close in silence the night his heat had finally ended. Just as expected his little brother hardly stirred the whole night, surprisingly only half-waking when he tried to get out of bed to pace. He had to simply relax again, making sure that Hiro’s head was still resting comfortably on his numb arm and his thin arms curled up against his chest.
He hoped Hiro realized how much control he had displayed that night, sleeping in a bedroom still reeking of another alpha, someone who had no place leaving his scent all over their shared room. It had taken all his good sense and patience not to douse his room in bleach.
Hiro didn’t even know the fight he had managed during his heat. Hiro wasn’t his omega sure, but he was still an omega and he had come home to that smell, Aunt Cass none the wiser downstairs as he fell victim to Hiro’s heat. Standing in the doorway of their shared room, watching in growing anger as some other alpha fucked him.
The way Kaoru was pulling on his brother’s hair had enraged him first. Then had come the horrible horrible alpha feelings in him, anger that someone else was claiming such a delicious smelling omega before him. The way Hiro’s small frame was jerked forward every thrust that bastard did. He could remember vividly the way his mouth hung open and the way his voice cried out for; more more, don’t stop, fill me up.
He had one foot through the door, thinking about how much better he’d be. It wouldn’t take much to subdue Kaoru and fuck Hiro, fill his body with so much cum all of Kaoru’s would be pushed out. And that thought alone had been enough to make him see sense. He covered his nose and mouth with his good hand. Reaching out with his injured hand he had closed the door painfully. His broken wrist had throbbed in protest and the pain had only helped him more to keep his mind.
“Ow,” He repeated with a smirk. Hiro let out an irritated growl of nonsense, turning away in frustration. He watched Baymax finally fully inflate and head towards him.
Hiro turned, jumping up and down in anger this time. “I am satisfied with my care.” He barked. Baymax began to shuffle away again, for the moment programed to focus on Hiro.
“I can do this all day knucklehead, ow.” He repeated. He watched Hiro glare up at him with those distractingly angry eyes.
“Baymax will run out of power at some point. I am-” He reached up, slapping his hand over his brother’s mouth before he could repeat the deactivating command.
He inched close, smiling sweetly at him, “Well, why don’t you use that big brain of yours and think of a new battery for him. It can be the first thing we make public together. Or did you forget about Hamada Brothers Robotics?”
Hiro looked sad at that moment. Like he had said the wrong thing, but they had loved the idea when they were children! That should have at least made him laugh and stop being so angry. “Fine, he can follow me around. But I’m not broken, I just had sex. Bet you can’t even find an omega virgin.”
In silence he watched Hiro shut down and turn away. He gave a wave over his shoulder, dismissing him with a sigh, “Also. Hamada Brothers Robotics sounds pretentious, how about Hamada Robotics? Think on it.”
He stared down at his cast covered wrist and sighed. He wasn’t much use right now with just one arm. There was little chance he’d be able to help Hiro design or make this battery so he left to be by himself in his room. Hiro was happiest in the garage anyway.
Making his way to their room he eyed the photos lining the staircase. When had his little brother turned into the unusual enigma he knew nothing about? An omega, with a sharp tongue who didn’t need him anymore? He had been the proud alpha guiding him for longer than he had realized his protective instincts. How did other alphas with little beta brothers or omega sisters deal with this? He wasn’t sure he could fathom the idea of another alpha in Hiro’s life, more so one that would be regularly scenting their room.
Hiro’s statement left him puzzled, he had sounded so indifferent to sex. He was right in the fact that virginity meant nothing. It never had and never would. Only that omega and alphas weren’t praying to each other’s weakness. Obviously Hiro had consented or at least accepted how his first heat had gone. There had been no tears and declarations of rape when the dust had settled.
If he was honest with himself he didn’t have any true territorial claims to refuse another alpha time with him. If Hiro consented and the alpha’s age was reasonable then there was no problem. He could refuse Kaoru another of Hiro’s heat by his age alone, but he wasn’t so old that Tadashi would able to win any sort of legal arguments without Hiro’s help. Frowning, he realized that’s what bothered him. He could do nothing because Hiro might want it again and he was perfectly within his rights to want it again.
Why couldn’t his brother be interested in alphas his own age? He had had his own time with insatiable lust. His freshmen year had been barely maintained grades and a string of betas and omegas that probably had made his parents turn in their graves. Aunt Cass would no doubt put the, ‘don’t ask don’t tell’ rules into effect until Hiro got over his phase as well.
Entering their shared room he took one look at Hiro’s sleeping area and kicked the door shut behind him. Crossing the room he fell onto his brother’s bed, shifting around. He could still smell that bastard in the area. He’d stomp out that scent with his own. This room was supposed to smell like Tadashi and Hiro, not Tadashi, Hiro and Kaoru!
He sat up, punching the pillow. It had been a while since he had indulged himself. With Hiro becoming active it would only encourage him to seek out his own sexual gratification. He smirked, remembering those days again, coming home reeking of other people. And though Hiro had had no secondary gender forcing him to mark or claim Tadashi, on some latent level the boy must had known. He would spend those nights with a lap full of Hiro trying to finish his homework at his desk before exhaustion set in.
The door slammed open and Hiro rushed in. He paused only long enough to stare confused as him, “Uh… wrong bed Dashi.” He watched in embarrassed silence as his brother grabbed his jacket. “Also, I’m taking Baymax out to see the bay. I’ll be back later.”
His brother ran out again and he slowly lay back down. Aunt Cass was still downstairs working her life away as usual, and Hiro would be gone at least an hour if he was going on foot. Raising up his hands to admire his cast and his off hand he nodded to himself. “I’ve got the time.”
Closing his eyes he let himself remember all the things that aroused him. The way fluid way Gogo moved, Honey’s loving smiles and that one time in the lab after hours. He even thought of his embarrassing high school encounters with a grin on his face, his old omega friend that proved to him he was more bi-curious than he was willing to admit. But the most arousing memory was the most recent. Just recalling Hiro’s omega scent and the sound of his mating made him shiver with humiliation and arousal.
“There’s nothing wrong with it,” He told himself. They weren’t blood related, it would happen. He was alpha and Hiro smelled like an up for grabs omega to him. There were some downsides to having an adopted brother. There was no natural generic counter that made him immune to that delicious smell. And he hadn’t smelled an omega in heat in a long long while. He had to indulge himself in that at least. Relaxing back into Hiro’s bed he reached down with his good hand to unzip his pants.
There was also the small bonus that this would help erase Kaoru’s scent from Hiro’s bed quicker. And that alone made his fantasy that much sweeter.