Run fast to the doors

You run as fast as you can, you try to open the doors, but they are heavy, and they move slowly, very slowly.
With horror, you notice their rotting hands grasping your arms and pulling you back.

You scream when they rip off your panties, the first cock impales you, your pussy burns in pain and you feel his cold flesh inside your body. They rip your clothes exposing your breasts, in the violence, chaos, and pain you feel a cold slime filling your vagina... the damn zombie just cum inside you.
A second zombie takes advantage of the slippery rotten cum, to use it as lube and penetrate your ass. Your vision blurs when the zombie put his dick inside your ass... tears run down your face, and you clench your teeth feeling your ass raped and destroyed.

You can pretend to faint and try to run away if they lose interest, or you can kneel and try to ask for mercy, letting them use your body and survive.