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Sirius Orion Black, a proud and brave boy belonging to Gryffindor House. Eldest son of the ancient and honorable House of Black, the House that has produced numerous respectable wizards and witches who have contributed essential things to the wizarding community.
Belonging to the Sacred Twenty-Eight and with a great fortune behind him for centuries.
Sirius had a thorough upbringing, knowing, even before entering, all the topics he would be dealing with during his next seven years. He never had any problem putting people in their place when necessary.
He is the Black heir, an Alpha bred for greatness.
An Alpha
No.
Omega
Showing up at Hogwarts wasn't unusual, but that didn't make him any less uncomfortable with the eyes on him. He didn't need to look at them to know what they wanted.
To claim him.
How did everything change so quickly?
The day started like any other, well, almost, waking up early (because of Remus and his damned prefect position), but from then on, he noticed something strange: his sense of smell. Normally, it would take him hours to realize James smelled like sweat. However, this morning was the complete opposite.
The first thing he smelled was the dried sweat on James's body, the combination of cologne and shampoo, but underneath, there was still Remus's earthy scent, and the cream Peter had been using lately.
"For Merlin's sake, Prongs! Take a shower before you go out!" He threw a pillow at him, and James immediately grabbed it and raised an eyebrow.
"But I took a shower last night, snotty."
"Then do it again!"
The second thing he noticed was his temperature; it was higher than normal.
"Mate, are you okay?" Peter said after the first period.
"Mhmh, I'm just hot." What he was saying was almost impossible. It was the bloody winter, it would soon be Christmas, and he had to leave his house, his home.
Many say his home is with his biological family, but for him, his family is James, Remus, and Peter.
Walburga and Orion are strangers he has to spend the holidays with.
And Regulus, oh.
If he knew his older brother saw him as anything but a brother, he wouldn't forgive himself. And it was better to stay away from him.
It was for both of their sakes.
Wasn't it?
"Don't you think you should go to the hospital wing?"
"No, James, I'm fine. It's just a little hot."
"But it's almost impossible for a normal human person to be hot..." He simply didn't hear him, not when, as he turned right, he found himself face to face with his younger brother leaning towards Barty Crouch.
Clearly intending to kiss him.
The cold of the ground hit him completely, but he couldn't overcome the tightness in his chest that barely let him breathe.
He vaguely heard James scream, but he didn't quite understand. His body burned, it was so suffocating. Tears began to form, and a sudden shiver ran through him. His underwear was damp. Had he peed? Impossible.
His still-sensitive sense of smell picked up something different, completely new.
Firewhiskey with peaches.
Someone picked him up by the arm and put it around his waist.
James
Their touch caused him both pleasure and relief.
And he remembered something: James was Alpha.
“An Alpha's touch can soothe an Omega in the midst of introducing themselves, helping them distract themselves from their warmth. On the other hand, every time an Alpha tries to grab or lean on a newly introduced Alpha, they can go crazy and kill each other.”
Human Development, Volume 1: Basic Concepts
Looking up, he found eyes just like his own.
“The most common thing among Omega wizards and witches is to introduce themselves by breathing in the scent of their potential mate, but in special cases, Omegas can introduce themselves by observing their potential mate doing something wrong with another person.
It's not mandatory for their potential mate to have introduced themselves; there have been cases where Omegas have introduced themselves to their Alpha who had just entered adolescence.”
Tafur Arturus. Special cases.
Regulus and company were just as surprised as he was, but what hurt him the most was that, even though he was introducing himself to them, they wouldn't let go.
A sob escaped his lips.
And so we arrived at the special cases room in the infirmary, only for omegas in heat waiting to be bred like cattle.
God, he hated all of this.
He scraped the floor, the walls, knocked over the plate of food he had on the dresser, pulled his hair out, and hit himself. He needed to feel something other than his body's natural lubricant and the feeling of dissatisfaction.
He didn't want to feel the fear of being alone.
He didn't want to be scared.
He wanted someone with him, someone who made him feel protected.
He wanted his brother.
Regulus
Reggi
His omega just cried all the time, and that didn't help him at all.
He wanted to avoid that feeling, but his gut wouldn't let him, as if it were a constant reminder that he'd never be able to have what he wanted.
As if it were a karma he was paying off.
A karma he'd have to carry for life.
It was a rather tiring week, between the heat, a change of dorms, and the letter he received at breakfast.
Which forced him to leave the dining room. Just a simple one.
Sirius Orion Black
I feel a little uncomfortable that we learned of your secondary gender from your brother. It would be best if you told us the good news.
We haven't had an Omega since the last century, and this development will have a great impact on our social circles.
Your character and upbringing were designed directly for an Alpha and the next Lord Black. But with this radical and unexpected introduction, some things are going to change when you arrive from Hogwarts.
Dear son, it's best if you marry into the family. No one deserves a pureblood omega, much less a Black. Narcissa unfortunately became engaged last summer, and Bellatrix isn't up for discussion. I don't know what my brother was thinking, compromising the family with outsiders.
But I assure you, Sirius Orion Black, you'll marry within the family.
Sincerely, W.B.
"Don't be scared by what your Muggle-born friends tell you; marriage within the family is more common in the wizarding world than you think, Siri."
Turning around, he saw how Regulus had leaned against the wall a few feet away from him.
"I see you're already having the first changes after a heat," he smiled. "But you're missing the most important one, aren't you?"
"Don't you have an alpha to help you through your periods? And here I thought Potter would take care of you."
She walked over to stand in front of him and leaned down to his ear.
"Or do you need someone else?"