Omegaverse AU

Bites. When an alpha bites an omega the omega can't notice until when the omega wants to breed with other alpha who isn't the one who bite them the omega will feel nauseous and sick except when they're breeding with the alpha who marked them. Omegas experience heat every 4 months that last up to 1/7 days

Your walking around the city for fresh air after 12 hours playing video games in your room