A/N: Hello, people!

I don't own Harry Potter.

I have no beta.

ENJOY!

CHECK ME OUT ON TUMBLR. HELLY-WATERMELONSMELLINFELLON. I FOLLOW BACK.

-This story will consist of A/B/O Dynamics. I do not own the original idea, though I have tweaked a shit ton of facts around. I do however, own Sigmas. They are my own a/b/o creation and I have already used them in two of my others fics. Two years running.

-This will be the third installment in my Sigma-Verse series. Harrymort! Woo! The other two are called, Σίγμα Oνε(which is a Johnlockcroft) and Σίγμα Δυο(which is a Hannigram).

Harry stared at the clinic with trepidation. When the national warning had gone out that the human race had basically evolved as a whole, some people had been sent into mass panic.

Secondary Genders had been introduced to the populace of Great Britain some time in the early evening on the nineteenth of July in 1994. Harry had been in the middle of clearing off the table after dinner when Uncle Vernon's roaring shook him from his task. Aunt Petunia had a hand placed over his her heart and Dudley was still eating his sugar free ice cream, too busy to pay them any attention.

"What is this rubbish?!" the older man hollered, gesturing frantically at the telly. "What do they mean 'Secondary Gender'?"

Harry's interest was immediately caught of course and he peeked around the corner, into the lounge, in hopes of catching what was going on.

Petunia looked to Dudley and then to Harry, her mouth twisting into a sneer. "We have to take them, Vernon. They say we could be fined if we don't!"

And so Harry found himself standing in line at a clinic in London, four days later. The process that he and every other British citizen had to go through would 'determine his secondary gender'. He didn't know what this was about but he knew that his aunt and uncle were livid over it and it didn't sound too pleasant

After four hours of the line moving incredibly slowly, Harry found himself in the waiting room, waiting to be called back into some room where he was probably going to be poked and prodded by cold hands and odd utensils that he knew nothing about.

Several minutes later, a young women with fiery red hair approached him and asked him to follow her

"My name is Marie and I will be overseeing the process today Do you know why you are here?"

Harry shook his head, unsure and a little wary of the stranger.

She gestured to the table and had him sit. "There are four Secondary Genders. Unlike your primary gender, you cannot decide which one you are. Biology does that for you."

She held up a flash card with the word ALPHA printed at the top in bold, red letters.

"Alphas give off pheromones that coerce others into obeying them. They are naturally dominant and controlling. Alphas are physically stronger, bigger, and have sharper senses than any of the others. The will also experience what is called a 'Rut' at present. It is when they are capable of impregnating their partner."

She flipped the card over. "Generally, people who possess vaginas, uteri, and wombs, cannot impregnate anyone. That is no longer the case."

Harry's jaw dropped and the woman nodded

"Yes. A good portion of the human population who have these three body parts, have grown another body part that functions much like a penis would. They are now capable of impregnating others. Unfortunately, their wombs are ineffective and have rendered them sterile, meaning that cannot conceive ever."

Harry could feel a pang of sadness for the people who had to go through that revelation.

Marie held up a second card. This one said BETA in blocky, blue letters.

"Betas are the humans who do not have any extra body parts. They are the average ones. The one with the penis impregnates and the one with the vagina conceives. They have no pheromones, no hidden strength, and no heightened senses. Nothing to set them apart from others. Almost half of the human population falls into this Secondary Gender for it is the most common."

She paused and gave him a look to see if he understood, so he gave a nod to prompt her to continue.

The next card said OMEGA, in green italic letters.

"Those of this gender also have heightened senses and pheromones. Unlike Alphas, they are generally nurturing and caring toward others. Omegas prefer to be delicate and when in the presence of an Alpha, will bend to their will most of the time. Omegas, once they come of age to 'present', will go into a Heat twice each year until they reach the end of their fertility. This means that they are at their most fertile and will unknowingly sending out pheromones to lure in Alphas."

She placed the card on her lap. "Basically, Alphas and Omegas have sex for a certain period of time, depending on how strong the Heat is. The Heat will push the Alpha into their Rut which ensures the most fertile copulation possible.

Alphas and Omegas are very animal like and can apparently Bond with one another, by placing a claiming bite on the neck area. By Bonding, they can feel each other on a higher level than normal couples can. Unfortunately, the minds seem to wander during the Heat which sometimes leaves the couple in question awakening to a new lifestyle that neither asked for. There are laws being made currently over this issue."

Harry wondered just how the Wizarding World would take this information or would they simply brush it aside? It seemed very important to him!

"It has been discovered that some people who were born with a penis, have also been born with a womb. This makes them capable of getting pregnant. Unfortunately, their semen is sterile leaving them incapable of impregnating others.

Mostly though, Omegas possess vaginas only. The chance of finding one with a penis, or as some are trying to label them as - Male Omegas - is about one in one thousand. They are incredibly rare. However, not the most rare."

Marie pulled up the last card. On the top was the word SIGMA, in purple lettering.

"This is the most rare Secondary Gender out there. In the past one hundred years of study of this new phenomenon, only fifteen in the world have fallen into this category. A Sigma is exactly like an Omega, but has the scent and pheromones of an Alpha, and unless they say something, one wouldn't know they have gone into Heat. They are the only Secondary Gender capable of being impregnated by either Alphas, Betas, or Omegas and almost always give birth to twins who are Alphas. Though one did give birth to a Sigma and an Alpha who were fraternal twins, so further study isn't available at present."

Harry's mind was reeling and he really didn't know what to think anymore.

"Now, I'm going to need you to answer some questions for me and then we'll move on to the extra."

She held up a clipboard and a pen and fixed him with a look over her wire rimmed glasses.

"Name, age, birth date, blood type, and list of allergies."

"Harry James Potter, born 31 July 1980. I'm going to be fourteen at the end of the month. I don't know my blood type and I don't think I have allergies."

The woman's eyes went wide instantly and she looked at his forehead. That was how Harry knew that he was faced with a magical person.

She leaned in, her voice extremely low. "Mr. Potter, what House are you in?"

"Do you mean Gryffindor?"

"Shhhhh!"

The woman tore up the paper she was writing on and rifled through the drawers behind her until she found a pink piece of paper.

"As you are a Magical subject, you have to be filed differently than the others. The Crown is very much aware of the magical community residing within their purview and ordered all magical people who register themselves, to answer a separate sheet. As you are one of the more famous subjects, you fall under a different category and your information will not be given to the public until it has been properly handled and tweaked to fit Muggle standards."

She then withdrew a long, ebony colored wand from her deep pocket. "I am a Medi-witch of St. Mungo's who has been brought here to aid any magicals. You should have given off a pulse in response to my magic, but you did not. Not like the others. You may be suppressed by a spell of some sort, which I am afraid we will have to break."

Harry scooted back on the table, eyeing the wand distrustfully and cursing the fact that he was not allowed to carry his own wand around. "Why?!"

"Calm down," she ordered, waiting for him to sit still. "If someone has suppressed your magic or your aura or soul, it will need to be removed post haste. It is illegal to suppress anything on a child because it could potentially cause lasting damage to them when they reach their majority. It is for your health, first and foremost. Now may I do my job, Mr. Potter?"

Harry took several seconds just watching her. When she did nothing but stare back, he finally decided to let her do whatever.

Her wand glowed blue at the tip and for several minutes, they sat there, watching as the paper was filled out with his information.

"Okay! All I need now is your results for your Secondary Gender!" She produced a cup. "We can wait for one of the X-Ray machines to get freed up, or you can give me a semen sample."

Harry's face flushed a morbid shade of red.

"I'll take an X-Ray please!"

Though receiving an odd look in return, she did nod.

Then began the wait.

He was an Omega, with a three in one billion chance of being a Sigma. His first Heat would determine if he was a Sigma or not. And apparently, it was odd that he had yet to present.

Like they expected fourteen years olds to have sex simply because their bodies were ready!

He was given a golden band to wear and it was covered in the Omega symbol from the Greek Alphabet. He was assured that his information was going to be filed appropriately. Marie then informed him that Hogwarts would have to undergo the same examinations this year and that if he was called to Madam Pomfrey, he was not to panic.

Finally, he was given a folder with packets upon packets of information guides to his new life as an Omega.

While not looking forward to the changes that would occur in his life soon, he was glad to at least learn about the changes in more detail.

Also, he was apparently going to be given a choice to spend his Heats in solitary confinement when they began happening at school. At least he wouldn't have to face sex yet. That was a relief. The Magical Community would have to take these changes and register themselves, whether they liked it or not.

To refuse so would be punishable up to a year in prison.

The most worrying thing, was Sirius. How would that go over?

The status of a male Omega elevated them beyond others. In truth, Harry was the only Male Omega in Surrey and that made him a spectacle to behold for everyone else.

All those neighbors who took the Dursley's words at face value and never bothered to get to know him. They were suddenly trying to get on his good side because he was worth a lot now in the eyes of the government.

Dudley and his parents were Betas and that changed things really quickly. Several of Dudley's 'friends' ended up being Alphas and with the info packets they were all given, that meant that Alphas were in charge and that Betas did as they were told. This turned things a little wonky and Dudley did not like the fact that the control had been ripped out from under his feet so quickly.

Harry would have to get routine checkups and his file would be updated consistently to make certain that he was being properly cared for. The Dursleys now had to feed him at every meal and they had to lessen his workload in terms of chores. They couldn't be seen as abusing an Omega in the eyes of the neighbors now, could they?

The only other Omegas in the area were fourteen girls who had lapped up the sudden change in their lives. Harry couldn't really care beyond the fact that he was getting all three meals instead of only one or two. Withholding food as a form of punishment was no longer in the works after all.

On Harry's birthday, several instances occurred. He had never really considered homosexuality before, but with the revelations of his body, he realized that if he ever wanted a family, he would have to give birth to them himself, or he would have to adopt. That meant artificial insemination or even shagging some bloke.

Harry had never thought of sex much. That was why he was appalled when Marie had asked for a semen sample. Unlike his fellow dormmates, Harry did not feel the need to wank. He did not wake up with raging hormones and did not take showers to relieve himself like the others did.

Harry hadn't thought much of it until he'd been asked to whack one off for science. And then it was blatantly clear. He was late in the puberty department. So Male Omegas did not reach sexual maturity until they had their first Heat, which was why he hadn't experienced anything like sexual desire yet.

At least there was nothing wrong with him personally. It was all his Biology that was doing this to him.

On Harry's birthday, the rising number of 'same sex' couples in Great Britain had tripled within a week. There were riots and attacks. Since everyone was required to wear the bracelets with informed the populace of what their Secondary Gender was, people had been getting shot left and right.

It was dangerous for Male Omegas and Female Alphas. Because they were 'unnatural'.

Several religious denominations had decided that this was an 'unnatural occurrence and was the work of the devil'. God was 'shunning humanity for their depravity'.

The sheer amount of laws that had been drafted in protection of the rare Alphas and Omegas had been staggering. Basically, showing any kind of hostile action could get you in legal trouble.

In two weeks, just under one thousand people had been mercilessly gunned down. In Great Britain alone!

It was blatantly obvious that this new change in the lives of the British would not go over well. And considering what was happening in the rest of the world, things weren't looking up anywhere else.

Overall, it was a sad day for him. To learn that people had been bombed in their homes, churches had abandoned their members due to their Secondary Genders, that people were being shot in cold blood, and others even killing themselves to escape the hatred or what they were told was 'unnatural' about themselves, was obviously a mood downer.

Harry wasn't sure how Hogwarts was going to handle this. He wasn't looking forward to it either.

A/N: The first is done!

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CHECK ME OUT ON TUMBLR. HELLY-WATERMELONSMELLINFELLONL I FOLLOW BACK.