Undertale AU Sibling Oneshots

Reapertale! Bros x Toddler! Reader

Requested by the lovely Fandom_love_32251!~

"Sans! Papyrus!"
Gaster's voice could be heard from down the hall. Sans and Papyrus jumped to their feet, rushing to Gaster's office as quickly as they could.
Gaster stood in the doorway, holding you as you squirmed and wriggled in his grasp.
You paid the irritated God of Magic no mind, happily tugging on his cloak and trying to chew on whatever baubles you could get ahold of.
"How many times do I have to tell you two? Keep them out of my workspace!" Gaster scolded in a leveled tone, forcing his voice to a normal level so he didn't end up scaring you as he held you out at arms length.
"Terribly sorry, Gaster!" Papyrus apologized, taking you from the taller skeleton.
"Poppy! Saus!" (I had to. Papy gets the cute flower name while Sans is just saUCE.)
"Hello (Y/n)!" Papyrus greeted, 'nyeh-heh'-ing softly as you patted at his face. "Now no more going into Gaster's office! It's too dangerous in there for someone so little such as yourself!"
Papyrus began to carry you back down the hall, and Sans began to follow before Gaster's quiet chuckle made him pause.
"Sauce."
"Shut up."

You were currently trying to drag Papyrus and Sans away from the portal, whining a bit. You were tired and wanted to sleep with them in their room but unfortunately they had work to do.
Work is overrated anyway!
"(Y/n)..." Sans sighed, turning to scoop you up. "You know we have to go."
You whined and shook your head, tugging on his cloak again.
Sans let out a heavy sigh, motioning for Papyrus to go on without him.
"Tell you what (Y/n), you go back to bed, and I'll see if Toriel can get you a non-wilting flower."
You gasped at the idea. Sans and Papyrus had tried bringing flowers back to you from Toriel before, but sadly they had all wilted. Toriel herself had tried giving you one as well, but you nearly cried once it began to wilt.
So you let Sans carry you to bed, tucking you in and plugging in your nightlight before leaving.

You awoke once again to find it was still late.
You just couldn't sleep without Sans or Papyrus.
Crawling out of bed, you waddled around the house, seeing if Sans or Papyrus were back yet. Sadly they weren't.
The only other person around would probably be Gaster, but you figured he'd be irritated like every other time.
You were too tired for your games of messing with him.
You waddled up to Gaster's door, hesitating outside of it. After a bit of decision making, you reached out and tapped on the door.
It was quiet for a bit, and just as you were about to go back to your room—
"Are Sans and Papyrus not back yet?"
You looked up, seeing Gaster standing there. You shook your head, reaching up to him.
He picked you up, resting you against his chest and shoulder as he ran a hand over your back.
"I'm sure they'll be back in the morning. For now, you need your sleep."
"Can't sleep..." You murmured, "Want Saus and Poppy..."
Gaster hummed, carrying you back to your room. He laid you in bed again, using a bit of magic to act like a mobile for you, softly glowing (fav animal) floating above you.
"Sauce and Poppy will be back in the morning, (Y/n). And I will be here with you. Nothing will hurt you. I promise."
Gaster spent the next half hour sitting with you, waiting until you fell asleep again before leaving the room.

You awoke to the sound of a portal, and you sat up fully awake.(gee what's that like?)
Jumping out of bed, you ran down the hall.
"Saus! Poppy!"
"Hello (Y/n)!" Papyrus greeted you happily, picking you up and spinning you a bit, causing you to giggle.
He then set you down, letting you run over to Sans.
"Hey (Y/n). Toriel, Paps, and I all figured out how to get you a flower." Sans crouched down to your level, holding out a crystalized flower that moved and felt like a real one.
You squealed happily, reaching out to gently grasp it in your two tiny hands.
Sans grinned down at you before scooping you up.
"Now, come along!" Papyrus declared, "I do believe it is time for breakfast!"