Undertale & Deltarune Oneshots

☆Secret- Frisk x Monster Kid

Plot: Frisk has been in a relationship with Monster Kid for a while now and is refusing to tell Toriel, but this secret is one that they can't keep for long

Extra Info: Frisk isn't mute in this and both Frisk and MK are fourteen

~☆~

Frisk lied on their bed, their feet swinging back and forth as they talked on the phone. They were talking with their boyfriend, MK, about the recent art project for school that they were working together on. They were mostly joking around because MK accidentally ate a crayon while he was coloring.

Much to their dismay, Frisk had to keep the lovey dovey stuff that they usually said on the low, mostly due to the fact that they were at home where Toriel could head everything. MK loved affection, and to have Frisk not at least say and I love you before they hung up would hurt him a small bit, though he would never admit it.

"Okay okay, but I am curious, did each crayon have a different flavor?" Frisk asked as they traced shapes on their blanket with their finger, a small habit they picked up to keep themselves occupied.

"Surprisingly, no! I was so certain the red one tasted like cherries!" MK responded, seeming shocked that a pack of crayons didn't taste the same as a pack of skittles.

Though their conversation had to be put on hold when the sound of footsteps were heard coming up the stairs.

"Hold on a second, MK, Mom's coming," Frisk said, not hearing a sound coming from the other end of the phone.

Politely, Toriel knocked on Frisks door before opening it. "Hello, Frisk. Are you busy?"

Frisk shook their head, "no, I'm just talking to MK. What's up?"

"Well I am going on a small outing with Asgore tonight and wanted to ask if you would like to stay with Sans and Papyrus for the night or stay here by yourself." Toriel asked, earning an excited nod from Frisk while they responded with Sans and Papyrus. Toriel smiled, "excellent. Pack your bag while I call Sans. I'll drive you over when you're done." And with that, she left, disappearing down the stairs once more.

Frisk then turned their attention back to their phone, "you still there, MK?"

"Yup! So you're going to the skeleton brothers house?"

"Mhm! Which means that we can talk for as long as we want once Papyrus goes to bed!"

"Heck yeah!"

Frisk giggled and blushed a small bit, "I gotta go, but I'll call you back later. I...I love you," though they whispered the last part.

MK chuckled and blushed as well, "love you too!" And with that, the two hung up, leaving Frisk to pack their overnight bag in the quiet of their room.

~☆~

"Hey, buddy," Sans said, waving to Frisk as they got out of the car and immediately ran over to give the skeleton a hug. They gave Toriel a quick hug as well before rushing inside to leave the adults to talk. Toriel simply expressed her gratitude to the skeleton, who had absolutely no problem watching Frisk like he used to years ago.

Toriel left shortly after and Sans walked inside, closing the door behind him before turning to Frisk. "Alright kiddo, Papyrus is staying at Undynes tonight, so he did tell me to let you sleep in his room tonight."

Frisk smiled and nodded, almost leaving to go put their bag away when they felt their phone vibrate in their pocket. They paused for a moment to check it, blushing and smiling when they saw that it was just a photo that MK found in his camera roll. It was one of the first pictures they took together when they started dating; the two of them were standing under one of the willow trees that was near MK's wearing the costumes that they made for their art class that year. Frisk couldn't help but smile and chuckle at the memory.