Notes:

This is an AU in which characters often act out of character due to the nature of the universe.

Alpha-Male or Female that has heightened sense and can impregnate an Omega (10% of population)
Beta- Average human that can only procreate with other Betas (70% of population)
Omega-Male or Female that is Empathic and can only be impregnated by an Apha (20% of Population)

Omegas are seen as sub-human and Alphas as Super-human by society at large.

Alphas: Sherlock, Moriarty
Omegas: Mrs. Hudson, John
Betas: Mycroft, Lestrade

The Ultimatum

Sherlock was sitting in the corner of the small room in "Bennington's Alpha Welfare Retreat." He had been staying in that room for three months now. He was clean of drugs for the moment but there was no doubt in anyone's mind that the moment that he left the clock would begin ticking down until it would be time for him to return to this place. It was out in the country and Sherlock found the boring and stable routine of this place exceptionally dull. He was following it though, he had to convince the counselors here that he was fully reformed and had seen the errors of his ways.

They didn't understand though, no one did really. He was an was just so much going on in his head at all times, so much stimulation constantly assaulting him. Even at this far away country retreat, the sounds and smells, the fabrics and lighting, even the food, it was all just too much some times. At the moment, Sherlock was simply waiting. Waiting and trying to block everything else out. The counselors were in a specially sound proof room discussing his situation with his older brother Mycroft. It would be their decision if he were to stay locked up in here and slowly descend into madness (for he was sure that all this stimulation coupled with the monotony of every day's routine being the same as the last would bring him nothing but madness).

Finally, with a loud creak of a door that, to Sherlock at least, badly needed to be oiled, Mycroft and three counselors entered his room and sat down without even bothering to ask for permission.

"We have come to a decision," said the head counselor with a cheery fake smile (his wife had recently left him and taken the kids to go live with his cousin).

Sherlock simply raised an eyebrow at the man and waited, not seeing that that statement actually required much of response from himself.

"If you sign a contract to get an Omega within 6 months than you may go," A female counselor was speaking now, softly as if to a child (she had 6 little ones at home and their Father was gay).

"However," Cut in Mycroft, his voice too loud and grating on Sherlock's ears, "Should you fail then you will return here to live out the remainder of your life." It didn't take deductive abilities to recognize that this is what Mycroft was expecting to happen.

Sherlock frowned darkly at being forced to get an Omega. He was an intensely private person and didn't have any interest in someone else sharing his life and being around at all times. Also, he barely remembered to take care of himself, taking care of an Omega was a lot of work that he didn't feel suited to.

"It's for your own good really," Said the third counselor (this one had a boringly normal and happy life), "Sign here and you may go with your brother."

Not losing his dark frown Sherlock did as requested then followed Mycroft to the black car that was waiting for him.