(Underfell sans x reader (female)) UNDERCOVER

Cooperation

          It has been a day since Flowey had left and he was starting to worry you if he was alright. You didn't notice you were pacing back a forth in the living room in fear that Flowey never made it to King Asgore while Sans watched you from the table being quite amused by your nervous state. 

"you okay there (y/n)? you seem a bit on edge." Sans chuckles.

"On edge would be an understatement." I say as I continued to pace the living room.

          Sans realized that you weren't joking and gestured you to come over to him but you ignored his attempt to comfort you and kept pacing. Sans was a little annoyed but also worried for you since he didn't like seeing you distressed.

"alright i think it's time you take a break from all that walking."

He walks over to you and picks you up and places you on his lap.

"Come on Sans, I haven't even been doing it for that long!" I say as I tried to find a comfortable spot.

"you've been pacing for an hour and a half, sweetheart."

"Wait, really?" I say confused.

          Sans replies with a nod and leaves you speechless, you let out a sigh as you rest your head on Sans' chest. 

"don't worry (y/n), Flowey is smart and will make it to Asgore without getting caught." He says as he fondled with your hair.

"I hope you're right." I sigh.

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          The trip to Hotland took longer than I expected and relaized that I had fallen asleep halfway there until the temperature started rising which woke me up. The cloak and scarf was no longer helping me but I didn't want to lose my disguise.

"Tra la la. Uh oh. Suddenly, feeling tropical..." The riverman replies.

          The heat was becoming unbearable which gave me no choice but to get rid of my cloak and scarf, leaving the rolled up letter behind me exposed. The riverman looked at me without my disguise but quickly turned back around to the front of the boat.

"Tra la la. Humans, monsters... Flowers."

          The riverman's weird sayings were starting to creep me out but we finally made it to Hotland as the boat slowly stopped at the bank. I quickly get off and checked to see if the letter hadn't been damaged.

"Come again. Tra la la."

          I give the riverman an awkward wave and hurried off to finish my mission but I needed water fast. I could feel my petals wilting as I frantically tried to find water and to my luck, I saw a machine with a giant water jug on the top of it, along with a bunch of paper cups stacked next to it. I hurried over to the water machine and filled one of the cups with cold water and drank it as fast as I could before the heat could evaporate all the water. I continued to do this three more times and finally felt satisfied.

"Ha! Look at that pathetic flower trying to drink water in the most hottest place in the Underground!"

          I turn around and see a small group of monsters laughing at me and ignored them as I continued my journey. As I walked away, I realized I had just past where the Royal laboratory should be but there was nothing left but an empty cliff side. 

"Wow, (y/n) wasn't joking when she said the entire laboratory had fallen." I say to myself.

          I continue to head on the only path that was left which brought me to an elevator. I press the button and waited for a few seconds as the doors started to open. I look up and saw that it was crowded with monsters in armor that were most likely the Royal guards. I quickly moved out of the way as they all get off of the elevator, not really noticing me. There was a blue fish monster with a blood read ponytail that was ranting to the rest of the guards around her as she held her helmet with one arm and rested it on her hip.