Undertale AU Sibling Oneshots

Lancer x Sister! Evil! Reader

(for those that haven't caught on, I do my requests in the order I get them. So if someone requests more than one, all of their requests will come first before the next person. It's how I list and document them in google docs really, I've got a perfectionist complex and unfortunately doing requests in the order I get them is part of that XD wanted to put this here so ppl know why others are getting like two or more requests in a row. I just don't want anyone feeling bad that their requests are after someone who's requested more than one, and I hope those that request more than one don't feel bad either. Multiple requests are always accepted(so long as I got something to go on lol), I will get to every request I list eventually!)
(If anyone wants, I'll take a screenshot of the Google doc so you can see what I mean if it isn't clear enough!)

Requested by the lovely SammyLawrence27!~

"So who's your new friend, Lance?"
"Oh (Y/n)!" Lancer beamed up at your arrival, running to hug you. "This is Susie!"
The pink dinosaur monster waved, pushing off of the wall she was leaning against to walk up to you both.
"Susie, this is my big sister (Y/n)! She's really strong!"(don't think it was implied the reader would be older, but that's the vibe that's stuck in my head atm)
"A lightner, huh?" You tilted your head at Susie, sizing her up. "How strong are you?"
"Pretty strong if I say so myself."
"You guys should duel!" Lancer jumped up onto a nearby rock, drawing in the attention.

During the tail end of the duel, you clearly had Susie overpowered, considering she was running from your spade attack in a flurry of cursing. You let out a cackle as Lancer declared the duel to be over.
"Looks like I overpower you Susie!"
"Shut up!"

You eventually met Lancer's other friends, Kris and Ralsei. They looked like total pushovers.
"We should prank 'em." You suggested, and Lancer and Susie immediately jumped in on it.
The plan was simple, wait for them at a certain spot in the fields, then scare the hell out of them.
You let Susie and Lancer go on ahead to the spot, and you hid in the darkness. Once Kris and Susie were in position, talking to Susie and Lancer about who knows what, you stepped out, rolling a chain of spades in your hands. (Kinda like Kai's weapon from Kung Fu Panda 3!)
Each clack of your weapon against the ground resulted in a near defeating bang, throwing up the dirt and grass under your feet.
Kris and Ralsei both tensed, pushing between Susie and Lancer to get away. Lancer was grinning ear-to-ear, bouncing on his toes in giddy excitement. Susie stood there in awe, jaw dropped.(*sarcastic smile* what do you mean I'm shipping you with Susie?)
You laughed, withdrawing your weapon once Kris and Ralsei were out of sight. "Oh that was funny, they run like chickens!"
"Yeah! Like chickens!" Lancer chimed in, bouncing around you.
"You're so fucking cool!" Susie exclaimed, her sharp teeth forming a big grin.
"Maybe we could attach a chain to your axe and i could teach you to do it too?"
"Oh hell yeah!"

You had split up with them after that, spending a bit of time secretly watching the guards struggle with the insane jester in the cells. You gave your secret wave goodbye to Jevil before heading back up the stairs.
On your way to your room, however, Lancer bolted down the hall to you, burying his face into your side.
"(Y/n)!!!"
"What happened!?" You were immediately crouched next to him, "Did someone hurt you?"
"The guards put my friends in the jail cells!" He cried, clinging to your cape.
You were stunned for a moment, but then your shock turned into something much darker, something usually only seen in the king.
"Lead me to the guards, I'll retrieve the keys for you and take care of the guards while you release your friends."
"Okay..."
Let's just say you definitely "took care" of the guards.
As Kris, Susie, and Ralsei were fighting the King, you helped Lancer and the citizens break down the doors in the meantime, and with everyone's help, you all managed to overthrow the Chaos King.
Seeing Kris and Susie off home, you took over as ruler.
You did a lot better than your father ever would have, and while you did have your evil tendencies, Lancer was there to help mellow you down.