So This Is Determination {Frisk x Sans}

The Human

Sans

The human loved my joke. Papyrus sometimes is no fun. He hates jokes.
"Child?" Asked Toriel through the door.
"Toriel? I thought you were asleep?" Frisk said.
"I woke up. Why were you laughing?"
"Sans mom!"
"Mom?"
"Well yeah, you're like my mom but better since you're alive and she-" Frisk stopped. I could hear her crying.
"Hey Frisk, want another joke? Would that help?"
"Mhm..." Frisk said, sniffling.
"What did one ocean say to the other?"
"I don't know?" Frisk sniffled.
"Nothin' they just waved."
Frisk giggled.
"Go to bed Frisk, I'll come here at 3 tomorrow, ok?"
"Ok."
Frisk ran off.
"Did you tell her about the outside of the ruins?" Toriel asked.
"No Toriel. But I'd love to meet Frisk in person, and you too."
"Maybe tomorrow I'll let you in."
"Ok, good enough for me."
I teleported away, back home.
"SANS! YOU ARE HOME. WANT TO GO CATCH A HUMAN?"
"Nah, I'm tired bro."
I went to sleep, and dreamed about Frisk.

Frisk

I woke up late. 2:55. I crept downstairs and waited for Sans. Toriel followed me.
Sans knocked twice. Toriel opened it, to my surprise.
"Woah." He said.
Toriel whispered something in his ear.
(A/N She said: "You better not be talking about Frisk", who, btw, in this fanfic, is 18, Sans in 19)
I hugged Sans tightly. Then backed up and looked at his face. His cheeks were bright blue.
  "Oh Sans, are you cold, can I get you a blanket, or something?"
  "Uh y-yeah, that'd be nice, kid." Sans stuttered.
  I ran off to get a blanket. I grabbed it and got by the stairs. They were talking.
  "SANS!" Toriel yelled accusingly.
  "Woah, calm down mom!" I said.
  I ran down and gave Sans the blanket.
  "Thanks kid. It really warms my heart."
  I giggle and blush? Blush? Do I like Sans?
  "Kid, you ok?"
  "What? Yes."
  "Ok. You're pretty cool kid."
  "I'm not cool. I'm Frisk-y."
  Sans's jaw dropped.
  "What? I thought you had a good Sans-e of humour?"
  It dropped further.

Sans

  The puns. I already was blushing. Frisk thought I was cold. But Toriel knew.
  "H-hey Frisk, want to sleep over at my house? Meet my brother?"
  "Yeah!"
  'I'll keep her safe.' I mouthed to Toriel.
  'You better' She mouthed back.
  I grabbed Frisk's hand, resulting in her blushing. I teleported us to me and Pap's house.
"SANS IS THAT A HUMAN?" Papyrus said.
  "Yeah, Papyrus, meet Frisk, Frisk meet Papyrus."
  'Toriel told me to protect her' I mouthed to Papyrus.
  "THE QUEEN? WOWIE! OK!"
"Frisk?" I asked. She had run off somewhere.
  "Frisk?" I yelled this time. I was worrying.
  "Hic." Frisk hiccuped from behind the couch.
  "Hey kid, Toriel told me to protect you."
  "Why didn't you tell me that! I can take care of myself!"
  And with that, Frisk ran out the door, heading towards Hotlands.

A/N: Go read my good friend StarlightWrites its undertale too! Follow her too if you would like.