Gaster AU Oneshots 2

Fell x Hurt! Monster! Reader

(This takes back before Fell... fell into the void. Aka, the war. P.S. Underfell!Arial belongs to askgasterdoodles on Tumbler)

You swiped a human with your magic before punching them. You ran ahead and took down another human. Fell, or Gaster, was giving out orders as monsters followed them. You knocked down another human before Fell noticed one about to stab you in the back.

"(Y/n)! Behind you!" Fell yelled. You turned your head before the human stabbed your side, straight in the kidney. You yelled out in pain before killing the human. Fell ran to you as you lowered yourself to one knee.

Fell was next to you as you slowed your breathing calmly. Fell pulled out the dagger before he helped you to the medical center. This was day two and you've been in the medical center for over a dozen times. The nurses came quickly and laid you down.

Fell had to leave as his younger wolf sister, Arial, trotted to him. "Was that (y/n)?" Arial asked. "Yes." Fell answered. Arial looked at the medical center as she stopped trotting. "Go back to the Undergrounds. It isn't safe yet." Fell ordered. Arial's ear twitched before she ran off.

- Later -

Fell was walking back with the troops when a lizard monster ran up to him. "Sir! It's (y/n)!" Fell's sockets widened before he ran into the medical center. You were gripping your side as the nurses looked helpless. "(Y/n)," Fell went over to you and hugged you, "don't you dare die on me!"

Your eyes were half closed as you mouthed something. "What?" Fell said. "I'm... I'm..." You whispered as Arial watched from the door way. Fell was ready to say something when you shouted "I'M NOT DYING, YOU IDIOT" in his nonexistent ear.

Fell backed away from you and blinked. Suddenly the nurses and the lizard monster were laughing. Fell's eye was glowing before you said "Don't look at us, it was Arial's idea." Fell turned as Arial bolted off. "SPOT! GET OVER HERE!" Fell ordered as he chased her.