(Sorry if this is short for you.)

Third POV

You and Sans woke up in slimey black stuff held both of you hostage. "Ah you're finally awake." New voice said. "Huh." Sans and you said. "Who are you?"Sans asked. "I'm Nightmare Sans but call me Nightmare and I know you are abysstale Sans and Sarah."Nightmare said. "Wow totally not creepy." You said sarcastically. Sans chuckled. "Ugh anyway you are to join me and make everyone miserable and you will get this orb thing and the other orbs and your Papyrus. So do we have a deal you two."Nightmare said. "Hey Sans." You said. "Yea?"Sans said. " I'll support you on whatever decision you make and I will do the same." You said. "Ok
(Y/n)."Sans said. "So deal or no deal abyss Sans."Nightmare said. There were two buttons in front of Sans one said deal the other no deal. "No deal." Sans said. You were happy with Sans' decision. "Ok I will make you two suffer until Abyss Sans says deal." Nightmare said. You have a looked at Sans with a look that said no matter what don't change your decision face. Then both of of you were knocked out.

(Please please please leave a comment and bye.)