Here I will be giving description to some of the words I will be using in this fanfiction.
Percentages of second genders:
Alphas 20%. Betas 70%. Omega 10% and only 2% out of the 10% are male omegas.
First gender :
It is just normal gender. Male, female, trans, non binary and other. This gender is known from birth. In this fanfic it will mostly be male and female (but maybe i'll include a trans character i don't know yet)
Second gender :
That is Alpha Beta and Omega second gender cannot be changed in any way. This gender is found out after 15th birthday. Either by tests, them getting their heat or rut but most of the time it is very noticeable by their behaviour.
Alpha :
Alphas are the dominant second gender. They are larger, stronger and natural leaders. They are usually more aggressive and have a strong scent. Each person has a unique scent. They naturally have a lot more testosterone. Alphas have ruts every 3 months. Male alphas form a knot while mating to get locked in with their mate to increase the chance of pregnancy to almost 100%. Female alphas have a very small chance to get pregnant and during mating they will have a fem penis to impregnate their mate, but they do not have a knot. Alphas can impregnate female alphas, female betas, and both gender omegas.
Beta :
Betas are the "normal" second gender. They are most similar to a normal person. They still have their own scent but it is not as strong as alphas or omegas. They mark their mates like alphas. Betas can only impregnate female betas, female omegas and very very rarely female alphas.
Omega :
Omegas are the submissive second gender. They are known to have a strong scent that mostly smells sweet. They mostly have more feminine body no matter the first gender. Male and Female omegas can be impregnated during any time but it is most effective during their heat. Omegas have heat every month for 3-7 days. Omegas naturally are good with kids and are very easily driven into baby fever. Omegas cannot impregnate anyone.
Baby fever :
Occurrence that happens to omegas after they hear babies crying for a long duration of time or when they have to look after a baby for a long time it makes them want babies themselves which can even turn into obsessive behaviour.
Scent :
Is the natural odor of a person. During heat omegas release scent that has pheromones that affects alphas behaviour letting them know they are searching for a mate. Alphas during rut will release their scent with pheromones that lures omegas in.
Heat :
It is a once a month occurrence for omegas that will make them want to find a mate and reproduce, during this time if an omega has a lover or a crush they will make nests. During heat omegas are quite weak, they are very horny and release a lot of scent with pheromones. They have a higher chance to get pregnant during this time. Males will produce slick that will act as a lubricant to make it easier to mate. During heat if an omega has a mate the mate will take their time to look after their omega , alpha will become quite possessive and defensive and will do anything to make sure their omega is happy and healthy.
Rut :
It is an occurrence that happens once every 3 months for an alpha which will make them go into very possessive behaviour during this time they will be extremely possessive about their mates, but they will be very sweet to their mate and begging for mating but still staying dominant. During this time alphas will be a lot stronger yet will have a harder time controlling themselves. Sometimes an alpha can make their omega mate go into heat with their strong scent, but that happens very rarely and only if the mates love each other very much.
Nesting :
Omegas will make a nest during their heat out of pillows blankets clothes and other soft items, most of the time the nest will smell like the person they like or are mated to by getting their clothes and including them into the nest. Omegas hide in their nest during heat and when they need comfort.
Omega Male Birth :
Natural birth for male omegas is just as usual as for females. Hope this helps.
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Deku's Nest (KatsuDeku)
FanfictionIt's time for class 1 A students to move into dorms. How will that go for Deku ? Will his omega self make it harder for him ? Or will someone else disturb his peace. Omegas make nests out of pillows, blankets and clothes of their mates or loved ones...