Desperate, you pretend to faint. They continue to fuck your holes, but slowly, they lose interest, confused by your stillness. They hit your belly, and pokes your mouth and ass with their fingers... but you don't move
You take advantage of the confusion and you break free.

But as you run through the unholy blackened earth, the hands of the zombies under the floor make you fall, and they grab you. They grab you tighter this time, and they continue to use your body, even if you pretend to be dead.
You scream when you notice that you are being pulled down under the earth. The last things that you remember are their unnatural long tongues exploring your rectum and vagina, their sticky rotten cum over your body, and the black earth covering your face.

This is...

THE END
Buried ending

Task: In your bed, pretend to faint and after a moment, get up quickly and pretend to escape. In your failed escape, secure a dildo on the floor and immobilize your arms and legs, ride a cold medium dildo for 5 minutes. Use a soft dildo and place it in your rectum as if it were the zombie's tongue exploring. Cover your body with a blanket, and imagine the zombies burying you.