Dark Blue

by Memekri Vantass

This takes place in the post-pacifist run in the UnderSwap. Sans started to act strange when he left the underground. He seems like he's hiding a few things... And something about himself... Something dark. Read the story to find out what they are! Warning: This story will have dark content. Be prepared for feels. Also... Maybe Swapcest... Not really sure if I will or not.

1. The Beginning

It was late and it was the first night at the monsters were freed from the underground, thanks to Chara. Papyrus and Sans were sitting at the top of the mountain, watching the night sky in awe. After so many resets… So many deaths… It was such a change to actually be outside Mt. Ebott. Papyrus was happy and finally felt relaxed, but noticed something about Sans... As soon as Sans was outside Mt. Ebott, he had a look of worry… He kept glancing at Chara, almost expecting something… But when he asked, Sans gave him the strangest answer.

-Flashback-

"Hey, Bro. What's up? You seem a bit tense." Papyrus asked, making Sans jumped a bit. He then looked up at Papyrus with his signature smile. "It's nothing important, Papy~!" Sans smile fell a bit, eyes lights disappearing for a moment and mumbled. "... at least i hope it's not…" His eye lights reappear and his smile is full and cheery again. "Whelp! I'm off to greet the humans!" And with that he ran off toward the nearby town.

-Back to the Present-

Papyrus looked at Sans, noticing he was in deep thought. Papyrus nugged Sans to get his attention, causing Sans to jump again and looked at Papyrus. "Bro, you seem to be in some deep thinking there. Mind telling me what you're thinking?" He was worried about Sans. Sans was never like this… Ever. Sans frowned and looked at the sky. "Just stuff… Nothing important, Papy." Papyrus frowned and sighed, looking back at the night sky. "Okay… But if you need to talk about anything. I'm here to listen." Sans had a sad expression, but quickly hid it with his cheer. "I know, Papyrus."