Short drabble, make make into a story in the future. Has Girl!Frisk, because I can't keep from calling them a girl -_-

You can take it platonically or romatically, but I prefer the Frans option :D Also this isn't from the game script, but who cares. :P

There is one swear word, so you have been warned, and I don't own Undertale, I never will. Well unless I somehow turn into a guy that looks like and is named Toby Fox.

Also thoughts are in italics.

"... couldn't you stay here in the underground?" Sans wasn't quite sure where this was coming from, why he was say this as he glanced away nervously, a light blush gracing his face. "all of us would be happier," or at least I would. " and me and pap would love to have you stay here," please don't leave.

Frisk frowned, confused. Didn't he want to leave the underground? Finally she decided to do something she hadn't in awhile. She spoke.

"Sans, why..." she struggled to speak the words, her voice rusty from disuse, and overcome with emotion, but she forced through it with determination.

"...Why do you want me to stay? Why Sans? I could free you, Papyrus, Undyne, Alphys," she continued listing names of all the monsters she met, from Froggit to Mettaton. "... All of you, I could free you, you'd be able to live above ground, see real stars, not fakes, drive a car, see other places, live So why don't you want me to go?"

Sans listened to her voice as his anger rised up, didn't she understand

"Because!" he shouted, rising up in anger slapping his fists on the table, making his stool crash to the ground, his left eye blazing with magic.

"I Fucking care about you Kid, almost as much as I love Pap, if not more! I don't want you to die just to set us free. Plus don't you realize? They won't accept a group of child murderers into their society, even most of them didn't kill, they still tried." he calmed down, smiling sadly. "just...please, stay here frisk?"

Frisk looked at Sans for a minute, thinking. Toriel didn't want her to leave either, she remember sadly, and what would Alphys do if she didn't have her to geek out with, Papyrus didn't have a spaghetti tester, if Undyne didn't have someone to confide in, as she seemed like she had a lot of burdens on her fishy shoulders, and what about Mettaton, even though he kept trying to kill her, he still did need a costar, and she wouldn't mind helping once in a while,

And Sans...

"Ok."

Sans sighed in relief, relaxing and slipping into his trademarked lazy grin.

"But we're still going to Asgore to let him know I'm staying."