Sanscest One Shots || OLD and MOVED

~ DustKiller ~

Requested by @trashy_SINZ
Prompt: Two who "hate" each other slowly warm up to each other ;3
[Edited the image-]

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"You fucking suck."

"You're face looks like a trash bag."

"Oh shut up."

Killer and Dust have never been good friends. Always been enemies, which would make you shocked that they were on the same team. But they really have no reason to fight most of the time, they just do.

"Shut up you two. I'm trying to watch Undernovella with the wife." Error received a hard smack from Nightmare, making him and Horror laugh. Killer nor Dust found it too amusing.

Dust grabbed Killer by the hood and dragged him away from them. Killer was fighting and struggling, but that didn't stop either of them from getting to where Dust was taking them.

Killer finally gave up and gave him a confused look. He was genuinely curious as to where they where going.

Dust finally got to where they where going. Dust threw Killer over to Cross, who was enjoying some nice alone time with a bag of popcorn and a movie.

"Aaaahh!" Cross and Killer screamed in unison. Dust chuckled to himself and ran outta there before Killer could kill him. (Haha)

—-

"Okay you two, you have to go on a mission." Nightmare told them, petting a small white cat he named "marshmallow."

"Wait what the fuck?! Why?!" Killer asked, angrily. Killer didn't really hate him, but they tolerated each other.

Nightmare gave them a low hiss. "As I was saying, you two are going to injure some of the main monsters from Underswap."

"But-"

"Now go." Nightmare cut Dust off. Dust glared at him, and left the office, Killer following close behind him.

"So, who are we getting first?" Dust muttered. Killer shrugged and smiled slightly. Dust sighed in disappointment.

"How about Papyrus?" Dust suggested. "He's powerful, but would garner the least troubles for us."

Killer nodded, and grabbed his knife. Dust smirked and grabbed his weapon as well, teleporting them to Papyrus.

They knocked out Papyrus and Alphys pretty quickly, and they where on their way to get Undyne, when Killer pushed Dust back against a wall.

Killer covered his mouth before he yelled at him, and he quickly looked back. He saw the two guards in hotland walking around.

"Why don't we just kill them?" Dust whispered. Killer sighed and looked at him.

"Because I think we'd have our asses handed to us by Nightmare." Killer growled in a hushed voice.

Dust smirked and pinned Killer to the wall, which got Killer a bit worried.

"Well, I've always wanted an excuse to do this." Dust said before kissing Killer. Killer mentally freaked out, but he found himself soon kissing back.

Dust pressed his face against Killer and forced his way inside his mouth. Dust and Killer's tongues danced together.

Dust eventually pulled away, leaving them both blushing pretty bad. Killer looked away, embarrassed.

"Hey, I love you." Dust mumbled. Killer smiled and kissed him again, something Dust wasn't expecting.

Killer pulled away and muttered "I love you two, but now's our chance!" Dust and Killer teleported into Undyne's lab.

—-

They got back, both kind of blushing. Horror immediately took note of this, and immediately ran up to the two, questioning them.

"Calm the hell down." Dust growled, blushing even more. Killer chuckled and hugged Dust from behind.

"Yes I claimed him. So if you touch him I'll kill you." Killer purred. Dust's face flooded a purple colour as he struggled to get out of Killer's grasp.

"Too much for one fucking day!" Dust hissed our before eventually giving up. Killer smiled and kissed him on the cheek.