Sans = Underfell Sans
Papyrus/Boss= Underfell Papyrus

As Sans was sleeping on his station, which he was highly not allowed to do. He woke up by a loud smack on the table. He looked up to see the Great and Terrible Papyrus, Captain of the royal guard or what Sans must call him: Boss. "Sans, what did I tell you?" Papyrus asked Sans with venom. Sans was in a cold sweat and replied while stuttering "D-Don't s-s-sleep on du-duty?" "And what did you do?" Papyrus asked again. "F-f-fell as-asleep." Sans replied while looking down. Papyrus sighed and said "You can't even do this fucking job. How could I fucking trust you for ANYTHING at all?!" Papyrus yelled as he continued to yell vile things to Sans. Sans couldn't do anything but listened to what he thought was the truth. Every word that Papyrus said echoed into his mind he teared up "NO NO NO! Don't cry, you pathetic excuse for a monster! Don't cry!....not in front of him." Sans said in his mind as he held back the tears. He thought he and Papyrus was finally getting closer. He remembered his first kiss had been stolen by his brother. Was all a sick joke? Papyrus noticed Sans was crying. He felt guilty of what he has done. Sans didn't deserve ANY of this. Papyrus grabbed Sans's chin and forced him gently to look at his eyes. Sans was confused and a tear fell down. Papyrus leaned in to kiss Sans and wiped the tear away. Papyrus pulled away from the kiss and looked at Sans. Sans's mouth quiver because he was in a verge of tears again. Papyrus shushed him and picked him up. "Maybe it's time you go rest..." Papyrus said as Sans just nodded and went to sleep.

Papyrus smiled wickedly and looked at his resting lover. "Remember, Sans, You are always mine."