This is another Undertale chapter story that took root in my mind sometime back and I've been itching to write it for a while now. :)

Undertale belongs to Toby Fox. I only own Laura, Amber, Dylan, and Hurricane. Any songs mentioned in this story belong to their respective owners.

A/N: This story takes place a year after the game and is Post Pacifist route. This story also features GrillbyxOC and PapyrusxOC. Toriel and Asgore have remarried and Sans is Frisk's dunkle.

Alright now, on with the story! :)

Dance To My Heart

Chapter 1: A Huge Shock

Frisk let out a giggle as she held out her arms, pretending she was flying, which she essentially was doing, courtesy of Sans making her float with his telekinesis as they approached Grillby's restaurant. The skeleton smiled up at the young girl and used his telekinesis to open the door to the restaurant. Grillby was the only one inside at the time as it was still a couple hours before he opened for business, but had been expecting the skeleton and young girl and so had left the door open.

Sans carefully made Frisk fly through the open doors and she giggled again. "Uncle Grillby! Catch me!" She called out.

The fire elemental turned calmly from his work and smiled, coming around the counter and holding his arms ready to catch the eleven-year-old child as the joke-loving skeleton made her fly into the taller monster's arms, only releasing her from his telekinesis when Grillby had her in a warm, secure hug. Sans entered the restaurant and locked the doors for his friend before walking up to them. "What's up, Grillbz?" He asked.

"Nothing much, Sans," Grillby answered while Frisk hugged him happily, resting her head on his shoulder.

"You haven't run into any haters, have you?" The skeleton asked in concern.

"Thankfully, not lately," the fire monster said. "And I haven't had a repeat of them tagging my windows or the sides of the building."

Sans let out a sigh of relief. "Good," he said. "It's bad enough we have to deal with hate groups at Toriel and Asgore's home."

Frisk sniffled a little. "Why are those people still being so mean to Mom and Dad?" She asked.

"Because they are choosing to be ignorant instead of open-minded like you, little one," Grillby said, rubbing her back. "It seems there are a lot of ignorant people, but I have seen many open-minded humans reach out to help us."

The three were quiet until all of a sudden, a strange sound filled the room and they looked to see something had appeared in the restaurant, but it wasn't customers. At least, not any customers the three had seen before.

There were two shapeless masses that stood before them and the masses had red eyes. "What are those?" Sans asked in confusion.

Grillby gently put Frisk down on her feet and walked forward a little. "May I help you two?" He asked politely, slipping into his role of a professional bartender and restaurant owner.

Without warning, the two things began attacking, going to the tables in the middle of the room and tipping a couple of them over, grabbing the napkin-wrapped silverware and throwing it aimlessly. Sans' left eye quickly lit up with his power and he narrowed his eyes. "I can't get a read on them," he said urgently.

Just then, two humans suddenly materialized between the shapeless masses and Grillby. One was a young adult woman with long black hair and she was wearing a rainbow-colored dress with a large skirt. Her companion was a young man and he was dressed in blue jeans and a light green shirt with white sneakers. In his hands was a recording camera and he was trained on the young woman, who opened her dark brown eyes and looked at the two masses, who seemed to panic and tried to leave. Before Sans and Grillby could consider using their powers to stop the masses, the girl spoke up.

"Don't you want to dance with me?" She asked sarcastically.

The young man pressed a button on the IPod he had with him and the song "Maria" by Ricky Martin began to play. The young woman began dancing in time to the song, but she was doing a bit more than dancing, something that became clear to Grillby, Sans, and Frisk as they watched.

The girl was throwing out kicks, punches, and leaps as the shapeless masses while she danced and in the middle of one leap, she unpinned her skirt and pulled it away from her to act like a matador cape, revealing the rainbow leotard, purple leggings, and white sneakers that she wore under the skirt as she didn't miss a beat, landing lightly on her feet and continuing her dance with the boy filming the incident, occasionally joining the young woman to twirl her around when she got close to him.

Sensing this could get dangerous, Grillby motioned Sans and Frisk to get behind the counter of the bar and they quickly did, watching as the strangest dance they had ever witnessed took place until one of the shapeless masses switched tactics and went to attack the dancer.

She jumped back just as fast and leaned back, her back coming in contact with the bar and she reached up, grabbing Grillby's shirt and pulling him to bend at his waist and almost making him half-lay on top of her just before glass flew over their heads and shattered. The dancer quickly lashed out a kick, knocking back the shapeless mass before giving Grillby an apologetic look. "Sorry," she said in a quick, but apologetic, voice and then leaped up, spinning around until she and the camera boy were back to back and she whipped out her skirt.

Ghostly glowing hands caught the rainbow-colored skirt, but that wasn't what shocked the monsters and the little girl the most. The young woman blinked her eyes and they began glowing yellow and purple while her companion's eyes glowed green and orange. They both smoothly slid back into dancing with the beat, only this time, the ghostly hands moved along with them.

Sans grabbed Frisk and held her tight. "Hold tight to me, Frisk," he said urgently and she obeyed, clinging to him as Grillby stood protectively over them, watching as the dancers' kicks and punches now connected more solidly, weakening the shapeless masses until they were defeated and almost barely standing up.

As the song started to come to a close, a tall black figure appeared, pointing to the shapeless masses and trapping them in a strange substance before they disappeared and he turned to the two dancers, holding his arms out as if he was calling for his children.

The young woman and young man didn't hesitate and before their impromptu audience's eyes, just as the song finished on a flourish, all three disappeared as the dancer and camera boy spun into the tall figure's arms and quiet settled in the room once more.

Oooh, what's going on? Who are the two mystery humans and the tall figure? Stay tuned to the story and you will find out. :)

Also please leave a review, but absolutely no flames! Constructive criticism is welcomed.

GoldGuardian2418