You were I rival gangs with the monster. You didn't know the name of your rival gang. Your fellow gang members found it amusing and teased you about it.

You weren't well liked. No one pretended they liked you. It was obvious they hated you.

You walked alone though dark ally ways. Your gang had sent you to spy on the others. You heard a crash. You froze and slowly turned round. Nothing was there. You turned back round. A monster stood in front of you "sup punk"

Everything went black.

You opened your eyes. Of course you'd have a bag over your head and would be tied up. You struggled only to make the chair you were sitting in crash to the ground. The bag over your head stayed on.

You heard foot steps coming your way. They stoped then you heard a small chuckle. You were pulled back up. The bag was pulled off your head. A short skeleton in a tux stood in front of you.

You decided to stay quiet. "So you got anything to say?" He asked. You didn't awnser. "Why were you around here don't humans normally keep out of monsters way?" He continued. You still stayed quiet. "Oh I get it now your from that other gang" he chuckled. You still didn't speak. "What did they send you to do?" He asked sternly. You didn't speak. He sighed "what did they send you to do?" He repeated.

"J-just t-to spy" you awnsered. He laughed "yeah just to spy" he paused "tell me the truth" one of his eyes now had a blue flame flickering from it. "I told the truth just to spy" you awnsered.

He sighed "I'm being as nice as I can" you looked at him fear in your eyes "m-m-my g-g-gang d-d-doesn't r-r-really l-l-like m-m-me" you stammered "t-they always send me out on things like this hoping I'll die" you were crying now.

"SANS WE ARE GOING OUT YOU WATCH THE HUMAN!" a voice yelled. The skeleton, Sans didn't move. You heard a door slam shut. Sans looked up at you "heh crying never got anyone out of anything" he put his hand on your check and wiped away your tears "So your gang doesn't treat you fairly?" He asked. You noded "you could say the same for mine" Sans sighed.

You both looked at each other in silence. "Welp this is awkward" Sans broke the silence he walked behind you and untied you "are you letting me go?" You asked. Sans looked at you "nah the rope is just probably too tight"

You felt the rope drop off you wrists. Sans stood up "you can untie yourself now" he walked off. You stayed sitting in shock.

Next Gaster x monster! reader
Then sans x child reader
Later drunk Underswap papyrus x reader