My sister's boyfriend Omegaverse BXB

My sister started to date with my bully, I was cool with that but my heat came when i found out he was my destinated Alfa. I don't want to hurt my sister, however, if I reject the Alfa we can die. What am I gonna do?

Mated to the bully alpha

Owen has been bullied by Jason the future alpha of the crimson crescent pack. And now all he wants is to leave the pack, get away as far as possible and never come back. But what would happen when he finds out that the person who he hates the most is his mate, Will they survive the game the fate plays with them?