Frisk hummed as she swabbed the deck. Pushing her curls back, she admired the clean deck.

It was the third day of the Underground's voyage, and everything had been going smoothly. Frisk looked up as Captain Asgore's son, Asriel, walked out.

Her gaze immediately returned to the deck, cheeks flushed red. Asriel would be attending school at their destination, which was why he was on this voyage. She watched as he sat down, reading a book.

"Frisk!"

She turned to see Asgore himself stand there. His gaze was worried though, aimed at the distance. "Yes sir?"

"Hurry up to the crow's nest and take a look at that ship out there, would you?" He asked. Frisk glanced at the direction, seeing a approaching ship.

The girl nodded, climbing up to the crow nest. By the time she grabbed the telescope, the ship was sailing next to them.

It was only a second until Frisk noticed the other ship's crow nest.

A skeleton had a telescope to his own socket. When he saw her, he lowered it. Frisk paled, bringing it back to her eye. He had a smirk on his face as he turned and pointed at them. She looked up, and her insides went cold.

They were flying the Jolly Roger.

"Pirates!" Frisk screamed down. Asgore had seen the flag too, and the crew was already running to steer the ship away. But when she saw the grappling hooks, she knew it was too late.

Pirates attacked ships for treasure and needed supplies. But she froze when she saw Asriel- as ransom, he was worth a pretty penny.

She hurried down, ready to defend Asriel and the Underground with her life.

~'~'~

By the time she got down, the pirates had already forced the crew in the center. Frisk landed in the group, forcing her way forward.

Then she tripped.

Frisk landed face forward onto the deck, grunting with pain. She looked up, only to see a sword aimed at her nose. She followed it to a blue coat, and to a skeletal face.

Scratch that, it was a skeleton. The skeleton from the crow's nest.

"Well, well." he said. "What do we have here?"

"BROTHER." Another skeleton called out. This one was taller, wearing orange. "ARE YOU SURE?"

"Papyrus." the captain- she assumed- groaned. "We've talked about this. Treasure can be people too." His eyelights landed back on her, scanning over her features. "And I found one heck of a treasure."

Frisk felt her cheeks grow hot. Nobody had ever flirted with her before.

"I suggest you leave immediately." Asgore called.

"Don't worry, we're leaving." he said. She yelped as she was yanked up, the captain slowly walking towards the ship. "My name is Sans." he whispered in her ear. "Can you tell me your name, treasure?"

"Frisk."

He chuckled. "Well, Frisk, let's have some fun."