Undertale AU Sibling Oneshots

Quantumtale! Bros x Older Sister! Reader

(the wiki did nothing for me XD so sorry if this ends up being too trashy for the trash heap in Waterfall)

Requested by the lovely Missi_Ana_Jones!~

You walked through Snowdin, each brother clinging to one of your hands. You had all gone to the park to relax and play around in the snow.
"Hey (Y/n)!" Undyne, one of your closest friends, shouted once she spotted you, waving frantically at you.
"Hi Undyne!" You shouted back, your brothers waving for you as they shouted greetings as well.
Once close enough, you let your brother rub off from your sides, calling after them.
"Make sure you two stay where I can see you!"
"We will!"
You and Undyne chatted for a while, Toriel eventually joining the two of you.
One moment, Sans and Papyrus were in your sight, the next, they were gone.
"Ah, fudge nuggets!" You hissed, running around looking for them.
"What's wrong?" Undyne asked, Toriel running alongside her.
"Sans and Paps disappeared from my sight."
"We'll help you look!" Toriel proclaimed, running off in a different direction before you and Undyne split up.
You eventually found them near the treeline, cornered by a Snowdrake obviously upset about somebody being in it's territory.
Putting yourself between them, your eyes flared a dangerous (m/c). "Back off!"
The Snowdrake hissed and squawked at you, trying to look more threatening before it cowered away, your eyes deepening in color.
After chasing the monster away, you turned and scooped your brothers up in your arms.
"We're sorry!"
"We didn't mean to run off..."
"As long as you two are safe, that's all that matters to me." You reassured them, hugging them close before guiding them back to the park. "Now c'mon, you two owe me an epic snowball fight!"