(Underfell sans x reader (female)) UNDERCOVER

Epilogue

          It's been four months since you saw Gaster and your life has been going well, Toriel was finally able to convince the king to be friends with you and any other humans that might come to the Underground in the future. Toriel also was able to come back as queen and offered Sans a job as a royal scientist once she found out he was one previously. Sans took the offer because he wanted to provide for you and kept insisting that you didn't need to go back as being a Royal guard even though Undyne was nice enough to give Papyrus' and your positions back. It was hard for Sans to get used to you working as a Royal guard again, mainly because he didn't want you to get hurt.

          It was strange for the first month to get used to walking around in Snowdin as a human when patrolling without your disguise, you would meet the occasional prejudice monster but they never messed with you after hearing that you were able to use magic. There were times you questioned yourself if you really were a human anymore ever since Sans gave half of his soul to you, but in the end you'd shrug it off and told yourself that it didn't really matter.

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          Since you never really kept track that well of how long you've been in the Underground, Mettaton thought it would be a good idea to throw a one year anniversary party for you to celebrate the day you fell down here and changed everyone's lives in a good way. Thankfully, Mettaton didn't invite the whole Underground but just invited close friends. Sans didn't want the party to be at Mettaton's hotel because it brought back bad memories and wanted to have it at Grillby's bar. Mettaton being the rich monster he is rented the entire bar for the whole day.

          Papyrus was already at Grillby's helping prepare for the party while Sans waited for you as you tried to figure out what you were going wear. You didn't really have anything fancy so you wore the nicest shirt and pants you had.

"come on (y/n) everyone is waiting for us." You hear Sans behind your bedroom door.

"Okay okay i'm coming, I just couldn't figure out what to wear."

You open the door and saw Sans wearing what he always wore but looking a bit more on edge than usual.

"Are you alright Sans? You look nervous." I ask concerned.

"y-yeah i'm fine, just a bit of social anxiety because of this." He tapped at the once damaged part of his skull.

          It took time for you to adjust to Sans' new look when his skull got fixed but it doesn't even phase you at this point. The hole in his skull was covered over with a bronze colored metal patch that was rounded out to his original skull shape and the color went well with his gold tooth.

"How do I look?" I say presenting myself.

"as pretty as an echo flower." He smiles.

You blush and look away making Sans laugh at your reaction.

          You start walking over to Grillby's as you listened to the sound of snow crunch under your feet and felt a cool breeze pick up, causing you to shiver. Sans opens up his jacket and puts it over your shoulders as you pull it closer to you. His jacket smelled of spicy mustard with a faint smell of cigarettes. You look up at sans to thank him and noticed his cheekbones were a bright red.

"Sans, your face is red. Are you cold?"

"uh―yeah, just a bit." Sans hesitates for a moment.

          You knew Sans was acting a bit strange but you didn't want him to feel uncomfortable by pointing it out right before the party.

          You finally made it to Grillby's and could see all of your close friends inside laughing and talking as well as other monsters meeting each other for the first time. You walk into Grillby's which felt much warmer inside and gave Sans' jacket back who still had a slight red tinge to his face. Mettaton notices you from the crowd and announces your arrival.