This world is divided into two sex the male and female, the secondary sex will be the alpha, beta, omega,
Alpha
The Alphas are the more aggressive ones out of everyone. They are the larger and stronger ones, the dominate ones in bed. They are the males or females pumped full of testosterone. The females work differently from the males though. While the males already have a penis, females don't. Everything is different for the Alpha females. They have a small chance of getting pregnant at all, but they can impregnate. Where the female's clitoris is, once she gets aroused, a retractable penis is there instead. Since she has a very small chance of actually conceiving a child, her womb would be smaller or not even there at all.Just Remember all Alphas have larger penises and are the ones to fight over an Omega.
Beta
Betas are the "normal guy of the society" they work just like normal human would do.Omega
Omega the softer and gentle of all,they are the nurturing parents that raises their children, any omega can get impregnated and experience heat, female omega works just normal, but male omega are different they have a low chance of being impregnated unless their alpha are stronger. When they go into heat they will self lubricate and they lost control and become vulnerable. During heat omega hide in their houses till they're heat ends or they'll have sex with their alpha mates until they're heat is over.
Heat
Heat is the stage where omegas are most fertile they mostly happen around 3-5 days once every 2 weeks, during this stage male and female releases their hormones and their scent go all crazy attracting any nearby alphas.
Ruts
Ruts is the stage where alphas are horny, when ruts happen they lost control over their body and only need one thing to impregnate their mate or someone, ruts mostly happen when they're around omegas on heat, the more aggressive the alpha is, the more uncontrollable they are in they're ruts.