Gender is a social construct. Some may argue via metaphysics that gender is inherent due to it's relationship with sex. Some people are also wrong. Here on earth as we know it humans even get sex wrong. We determine the sex of an animal based on whether or not it has a dick. Bees distinctly have a non reproductive gender roll that we by virtue of them not having dicks label as female. Even if the don't have the ability to produce young. Bees have three sexes, Male, Female and Worker. The worker plays a critical role in reproduction: Support.
In the Omegaverse there are two descriptors of sex, visible, and functional. What gender you are assigned at birth is bases on visible sex. Penis or Vagina. Functional sex doesn't show itself until much later in life, just after puberty finishes up. All humans have both testes and a womb but only one presents visibly and frequently one of the organs is considered vestigial. Non functioning.
Without the hormones to tell the organ to do its job the organ is useless. Alphas only have functional testes and are quite rare. Omegas are rarer and have functional wombs but vestigial testicles. Betas are like worker bees. All of their reproductive organs lack the hormones to procreate. The hormones in question produce a smell that gets stronger at certain intervals at which the person is most fertile. These are called heats and ruts. Both are known to cause intense pain and clouded judgment.
Erik is a 6 foot man in his 40s with side shaved brown hair and prescription goggles resting on his sweaty forehead. He happens to be in rut today. He has a mountain of progress to make by an ever closing deadline. He has four virtual meetings to attend and cannot afford to piss off the sponsors of his project. He can't afford to take the week off to take care of himself. This is a disaster waiting to happen.
The esteemed Dr. Robinson is a bit of a fool when it comes to social dynamics. Fumbling around like an Alpha half his age, immature, impulsive and needlessly hungry for dominance over others. It's bad on a normal day. In rut it's leagues worse.
He came into work as prepared as he could be. Using illegal hormone blockers to lessen his urge and special soap to mask his scent. It wont help him feel better but it will definitely prevent a Beta like Prateek from pointing out that he's come to work in rut.
Prateek walks in the trailer five minutes early with coffee as usual. Prateek is a 5 foot 5 indian man with long curly hair and a clean shaven face. The smell of his home brewed coffee in that signature paper cup is undeniable. Erik's cock throbs and his mood softens. He takes the coffee maintaining his resting bitch face as he takes a sip.
"Too much cinnamon." He grumbles.
Prateek responds "I'll use less next time." His face is enough indication that he understands what he's done.
Sometimes Erik worries he's too hard on the Beta, and yet like clockwork Prateek keeps taking time out of his life before his shift, before hes on the clock to be kind to him. Likely having to get up a half hour earlier than he would otherwise to do so. If he were truly too hard on him perhaps that routine would stop. Support is the role of the Beta, and Erik knows this.
The only other explanation would be that Prateek cares. That thought alone makes it hard to focus. He likes Prateek, he rarely challenges his authority and puts in more effort to learn how to read the doctor's needs than any assistant that came before him.
By virtue of the man's secretarial style job Prateek behaves a bit like an Omega. On most days this is a blessing Erik takes for granted. But today, the hormonal Erik takes notice. It takes a significant amount of energy not to growl at the Beta and drool right in front of him.
There are two main situations in which a Male alpha fucks a Male beta. The first is to put the beta in his place. The second is due to inability to find an omega. The difference? The first option is considered cruel and immature but a sign of strength nonetheless. The second is a sign of weakness, that the Alpha was so undesirable and weak that no Omega would ever want him.
As the first meeting approaches and Erik still can't seem to get anything done he begins to consider the possibility of making Prateek lend a hand. It's pathetic but he wouldn't consider anyone else a desirable option.
He looks over to Prateek who is sat at his corner of the desk making swift progress on the boring paperwork associated with Erik's job. "Prateek" Erik calls.
The Beta looks up from his work with a face so cute Erik could punch it. "Hm?"
"I'm not going to be able to get through this meeting without killing someone."
"...Do you need something?" Prateek quirks an eyebrow at the doctor.
"Yes, I need you on your knees in front of me." Erik growls.
"Okay?" Prateek is used to the humiliation and Eriks needless exercise of power by now. However, the command 'on your knees' is definitely a new one.
He complies, kneeling between the Doctor and the desk his eyes lined up perfectly to see the massive bulge in his pants. Prateek blinks. Oh. Giving it a second more thought Prateek can understand how that would make his boss more irritable. What he doesn't get is why he's asking a beta to... assist.
"Sir," Prateek starts, "I'm not-"
"A mouth is a mouth, by my calculations yours will take the edge off just fine." He rolls his chair into work at the desk, pushing Prateek under the desk.
The only comfortable place for his head to be is now Erik's crotch. He looks up at his boss, "I could go to HR for this..."
"You won't." Erik says knowing full well that if a complaint were filed Prateek would be the one out of the job. Agents are much easier to replace than genius scientists and engineers like Robinson.
Prateek unzips Eriks pants, unbuckling the belt. He pulls the mans boxers down tucking the elastic band behind his balls to keep it out of the way. The cock flops out as if it were spring loaded. The rod twitches as precum drips from the large bulbous head.
Prateek takes a moment to comprehend its size. He had heard that Alpha dicks were bigger than Betas. He never really understood how much larger they actually were until now. The veins on it pulse like a heartbeat. He gently wraps his hands around the shaft thumbing the uncircumcised tip.
"Well go on" Erik hisses trying not to sound too eager.
Prateek moves his thumb out of the way and wraps his lips around the tip, giving it an experimental suck. He slides his tounge under the bottom of the shaft as he takes more in, admiring the way that it twitches and throbs in reaction to every touch he gives.
Erik finds it hard to focus even with his overpriced cock warmer. He hunches over his blueprints and puts a hand over his mouth to muffle the sounds that threaten to escape. The feeling is heavenly. So warm, wet and...loving.
He logs onto his first meeting and muddles his way through it. Keeping uncharacteristically quiet throughout the whole thing. Prateek groans quietly, sending little vibrations through his rod as the Beta bobs his head. The meeting ends and he pulls Prateek in by the head with a growl. "Do that again"
By this point Eriks cock is pressed to the back of Prateek's throat causing him to gag and choke. "I felt you moan, slut. Be a good little whore and do it again for me."
Prateek groans louder this time. And Erik grins. "You like sucking my cock don't you? You like being a pretty little cocksleeve for a big bad Alpha hm?" Erik pets Prateek's hair.
"Mhm" Prateek looks up at him with a red int on his sucked in cheeks.
"Ohh fuck you're too cute. Aha." The doctor growls as he feels himself nearing the edge.