Naruto Namikaze was entitled as the strongest omega for her special power in subduing nine-tailed beasts/demon gods (one-tails shukaku, two-tails matatabi, three-tails isobu, four-tails son goku, five-tails kokuo, six-tails saiken, seven-tails choumei, eight-tails gyuki and nine-tails kurama). Naruto was also a master of senjutsu, that she could move as fast lightning and sharpen all of her senses. When her heat period came, her desire would be hard to control yet she could endure it quite well. She emanated intoxicating sweet pheromones that caused many strong alpha asking her hand for marriage as well as bonding (obviously including the mating session). Yet Naruto turned down their offers and challenged her suitors in duel instead. If they won, she would succumb. If they lost, they must give up onher. Naruto has always been winning the fights even when she faced the strongest alpha gang leader of Akatsuki organization, Pein. Naruto wondered if her true mate was far stronger than Pein. Her grandma, Tsunade theorized that Naruto true mate must be a strong alpha that could made her powerless against him. He must be someone who could finally make Naruto interested in love and aroused when he is around her during her heat periods. If an omega had not mated until her heat periods ended, she would get a severe bleeding for averagely three days. Heat periods were usually occured for three up to five days, or worse for a week. If alpha male mated with alpha female, their offspring is rarely or impossibly become an alpha. Until today, the result of their matrimony often turned out to be an omega. Like Naruto parents whom both are alpha. While Beta is a major population in society that has a balance proportion between male and female. Beta from any classes or levels will always produce beta offsprings. An Alpha will only be born through the mating between alpha and omega. Like Fugaku Uchiha whom married to his own cousin (an omega) Mikoto, blessed with two alpha boys. Omega is dominated by females. Male omega is a very very rare occurence and if there is one, he will definitely able to conceive a child. Male omega is one out of one billion in comparison. Same sex mating is natural occurence despite forbidden in law. Same sex couple (gay) are likely impossible to have offspring unless one of them is a male omega.
Sasuke Uchiha is very different from his big brother Itachi who was gentle, strong, smart, charismatic and popular to be most wanted spouse. Sasuke was identic with his nerdiness and cowardness. No girls were interested to approache him and boys were enjoy to bully him. He was always wearing glasses and so old fashioned. When he was transferred to Konoha Gakuen, he was challenged by a gang-leader-like schoolgirl, Naruto, in a duel. Sasuke politely refused but Naruto did not receive rejection. Naruto belittled Sasuke. But she had had underestimated him. When Sasuke finally accepted her challenge, he was turned out to be the first man to ever conquer her strongest demon gods through his eye prowess only. Kurama, the nine-tails, informed Naruto that Sasuke was likely her prodigy rival with his Uchiha bloodline. Sasuke even matched her speed and strength in direct combat. With his eye prowess, Sasuke could summon the almighty thunder and disaster god, Susanoo, sun goddess, Amaterasu, and moon god, Tsukuyomi. For the first time Naruto admitted her lost.
Naruto wondered if Sasuke was the one meant for her, yet she hated to approve him. A femme fatale like her should not and should never date a nerd like Sasuke.
When their class was holding a camp in the mountain downhill, Naruto was partnered with Sasuke to do daring test. When they were passing a dark cave, Naruto slipped and fell on Sasuke. She was blushed realizing Sasuke hard erection portrude on her stomach. She did anticipate her heat period to strike tonight in this unfortunate situation. Sasuke could be her true mate. It means she would be weak under his dominance. While Sasuke was not sure of what to do until his instinct wildly taking control for the first time. Naruto was seemed to be his true mate that she could make him lost his cool. They started with kisses and shared a steamy night guided by their feral instinct. Slow pace. Fast pace. Bitemarks. Sasuke got into Naruto pants. Unconciously they bonded towards each other. And had an official mating session.
End