[You're Not Alone] Underverse Cross Sans X Reader

Chapter 17 [Curruption]

You woke up as You sat up quickly and looked around. You were in a room.. wait.. You were in Sans and Papyrus' house! You looked to your left and saw Sans was on the other bed next to yours. "Sans.....?" You asked while your eyes were wide. You notice that his eye sockets were black. "I-I'm not sure what happened.." He replied as he stared at the bed covers.

   The door to the room opened as your eyes widen who it was.... Frisk.
He has 2 plates of cookies with a welcoming smile as he went to you. "Good morning, sis! I got you some cookies!" He said as he placed a plate of cookies next to you. Before Frisk could hand the other plate to Sans. You automatically hugged him as he was shocked from the action. Frisk placed the plate of cookies on the bed stand as he hugged back. You were crying slightly, as you hurried your face into his small shoulder.

  "Sis.. Are you okay?" He asked, while releasing the hug. You nodded as you choked back a sob. Frisk smiled slightly as he wiped your tears away. "It's okay..." He said. "Calm down.." He patted your back as you looked back at Sans, his eye sockets were glowing blue and red as he was glaring at Frisk. When Frisk faced Sans, his expression was calm. Frisk grabbed the other plate of cookies as he walked over to Sans. "Morning, you lazy bones! Time for you to get up!" Frisk said while chuckling in the end. You smiled slightly as you took a cookie and took a bite.

  "Now gimme that! You should know that you and (Y/n) have a celebration for you guys in the surface!" Sans said as he ruffled Frisk's hair. Frisk giggled as they walked towards the door. "Remember! To change for the celebration! I'll be down stairs!" He said as he closed the door. You sighed as you stared at the plate of cookies. "Is this a dream?" You asked. "I.. I don't know.." Sans replied. "Gaster's games?" Sans' eye socket went black. "Maybe.." You sighed as you pushed the bed covers off your body as you placed the cookies on the bed stand. "I'll accompany... Frisk.." You said as you walked towards the door and exited the room. Sans sat there... he remembers something that you don't.

   You walked down the stairs as you looked around. You spotted Frisk on the dinning table, he looked upset. "Are you okay Frisk?" You asked. Frisk looked at you with a sad expression. "Not really... But why are you guys acting so... off?" He asked. You sighed as you sat down next to him. The door opened as Papyrus came through. "GOOD MORNING HUMANS!" Papyrus greeted as he walked up to you both. "WHY ARE YOU BOTH UPSET?" He asked. "I...Um.." You replied while looking away. "DONT BE UPSET! PAPYRUS WILL ALWAYS BE WITH YOU!" He said as he pulled you and Frisk into a hug. You and Frisk giggled as Papyrus ate you down.

  "I'LL BE OFF! I ONLY CAME HERE TO CHECK ON YOU! WHERE IS THAT LAZY BONES?" Papyrus asked. "Upstairs." You replied. "ALRIGHT! TELL HIM THAT I SAID GOOD MORNING!" He said as he ran out the door. You and Frisk face each other as you sweat dropped. You weren't really used to seeing Frisk... You looked at Frisk's expression. They were upset and you felt there aura of sadness. "Hey Frisk, are you excited to go the celebration?" You asked breaking the silence. Frisk smiled but still was sad. "Yeah.." He replied. "We should get ready.. we wouldn't wanna be late to the celebration, right?" You asked. Frisk chuckled and nodded. "Yeah." As soon as you guys were about to head upstairs, Sans came down.

   "Sans!" Frisk teller with excitement in there voice. They ran up to Sans as they hugged him by his 'stomach'. Sans was tense but as he was really close to summon his Gaster blaster but you glared at him. He sighed as he ruffled his hair. "Morning, kiddo." Sans greeted as he sweat dropped. "Big sis and I were about to go get ready for the celebration! Remember to get ready!" Frisk said as they released there grip around Sans' sweater.

  Frisk ran to you and pulled you by the arm and dragged you upstairs. "We're going to change! We'll see you there!" Frisk said as he continued to drag you upstairs. Frisk leaded you to his room as they pulled out his cloths and yours. "You should wear this!" He suggested. You took it and stared at the outfit.