Undertale AU Sibling Oneshots

Protective! Cross x Younger! Untrusting! Reader (part 2)

(woo part 2!)
(Listened to Viva La Verse by Sharax while writing this)
Requested by the lovely Froggibear (who was once JustAPolarBear)!~

"LET ME GO!"
You snarled, eyes flaring lavender as bones shot out of the ground, pushing Papyrus back, causing him to let go of you. As soon as your feet touched the ground, you ran, ducking under any outstretched arms that tried to catch you.
"Sans!" You yelled once he spotted you, some of his rage melting away at the sight of you. You buried your face into his hoodie, clinging to him like your life depended on it. He hugged you tightly with his free arm, considering his weapon was in the other.
His anger returned at the sight of your tears, and gently pushed you behind him before turning back to the group. (for perspective, you reach just past his elbow)
Their battle stretched on, ending with Cross jamming his blade into the ground, the ground beneath your feet glowing white before the city's occupants disappeared with the glow.
People for your missing home.
"(Y/n), we need you to stop this! Try to convince—"
"You think she's going to listen to you?" Cross cut Ink off, grinning. "She doesn't trust people she barely knows, Ink. At this point, I'm sure I'm the only one she trusts!"
Ink met your gaze, and you clung to Cross' cape, hiding yourself behind him.
Cross pointed his blade at them. "Now how about you start by leaving her alone?"
A blaster was fired at him, and with a glint of lavender in your eyes, you quickly blocked it with a blaster skull of your own.
"Can I help, Sans?" You asked him, reaching for his hand. He smiled down at you, pulling you to his side.
"Of course you can."
From then on you helped Cross in his fights, helped him rebuild your home. You met Nightmare, and despite how scary the goop octopus was, you, very slowly, grew to trust him as well with encouragement from Cross. Nightmare watched over you whenever Cross couldn't, clearly gaining a soft spot for you. It made you wonder if he had a young version of you as well.
You were still mad at Ink and the others for hurting your brother and refusing to help in rebuilding your home, so you fought your hardest when battling them, sticking to Cross' side the entire way.