Gaster AU x Reader ONESHOTS

Outertale x Daughter! Reader

You were sitting and enjoying the stars when you heard something. You looked around until you saw your friend Blooky. You rushed ocer to him and saw him holding Sans's jacket and Papyrus's scarf. Blooky also had a cut along him. "B..blooky?!" You knelt down as Blooky floated to you.

Blooky rested on your lap as you took the items he had. "T..the hu..human, th..they both de..defended me." You hugged Blooky and got the jacket and scarf on. "Come on, I'll take you to Alphys." You said before teleporting you both to the lab.

Alphys and Mettaton appeared from the camera room. "Blooky! Darling!" Mettaton took Blooky from you as Alphys walked up to you. "Let me guess, the human didn't attack anyone else." You said as your eyes glowed a deep purple. Alphys only nodded, Alphys knew not to get in your way when you were angry.

The thing is, you were on a new level of angry. "Please take care of Blooky. I'll be right back." You requested before teleporting away, you were in the Judgement hall. As much as you hated this place, you had to fight the human here and now.

You clutched your fist before a galaxy sword was summoned, you gripped the handle as you waited. You then heard someone coming towards you. You saw it was that demon from the different universe. "So, happy now?" The human just stopped walking as your eyes began to flare up dangerously.

"Happy that you're me from the inside?! Happy that you killed my brothers?!" You took a breath before smirking dangerously. "Well, let's see how happy you'll be after you face ME." You teleported and swiped the human with your sword, you then stabbed the human in the back. Kill one.

The human came back to just be killed over and over again. You used your sword, Gaster Blasters, bones, and magic. You decided to end this. You speeded towards the human before swiping their chest, their soul shattered in seconds. You were covered in sweat as you panted. You stored your sword into your soul.

You then teleported back to the lab to see Alphys and Mettaton getting done with Blooky's cut. "Knock knock..." You said as you knocked on the wall, the three could see you were exhausted. "(Y-y/n)! A..are you ok?!" Alphys asked with concern.

You nodded before Mettaton helped you to a chair. "I..I killed the human." You admitted before Undyne walked in. "That'd explain why you're so tired darling." Mettaton said as Blooky floated to you. "Alphy, Asgore wants to know if everyone is-" "Not now Undyne." Undyne saw you were wearing Papyrus and Sans's favorite clothings.

"Oh. Uh, sorry." Undyne chirped. Blooky floated in front of you as you smiled weakly. "Y..You killed the human for your brothers?" Blooky asked, you looked at Blooky and smiled. "And for you. Nobody hurts my friends and gets away with it." Mettaton was watching and you noticed.

"What?" You asked, Mettaton smiled and knelt down to Blooky. "Blooky, would you smooch a skeleton?" You suddenly blushed a deep purple that had stars in them. Blooky looked nervous as he nodded and quickly kissed you, you gripped the chair and flinched before Blooky pulled away.

You could hear somebody snickering, you turned and saw your dad. You flattened your bone-brows and pointed at Gaster while mouthing 'Shut up'.

HINT HINT: If I ever make an Outertale Sister Scenarios book, I'm shipping you with Blooky.