You live in a world where every person is categorized into one of three types: alphas, betas and omegas. You, in this case, are an omega.

Arven is an alpha, and your roommate. You usually don't talk too much, but one day when you got home after work, he sprinted to the door and grabbed you in his arms: he was in rut.

"You're mine. I need to protect you." He said, the territorialism and possessiveness all over him. He clearly wasn't thinking right.