Sans x Reader Fluffy and Lemon Oneshots

Alone (Sub. Male lemon)

"HUMAN! SANS! I AM LEAVING TO TRAIN WITH UNDYNE!!" Papyrus announced to the whole house. I grinned and shook my head at his antics. Snow fell steadily outside, giving the world a peaceful setting. Monster Kid and Undyne were roughhousing in the snow, her obviously showing restraint. He was tackling her, and managed to catch her off guard, knocking her to the snowy ground. He got worried, until she burst out laughing, letting him know she was fine.

"Bye, Pap." Sans waved to his brother. I ran over and gave Papyrus a hug.

"Goodbye, Papyrus!" I said to him, giving him a little squeeze. He scooped me up and spun around, hugging me tighter, squeezing the air out of my lungs.

"FAREWELL, HUMAN!" He put me down, tapping his teeth to my forehead. "STAY SAFE."

"Jeez, dad, I will." I joked. He looked confused.

"I AM...NOT...YOUR FATHER...?" I chuckled.

"It was..." I did my best to imitate Papyrus. "MERELY A JEST! A JOKE OF SORTS!"

"OH! I GET IT!" He laughed, then looked around nervously. "I D O N ' T G E T I T . . . " I smiled.

"You'd better get going, bro." Sans mentioned.

"Undyne will get impatient if you take too long." I added while looking out, and sure enough, she was shouting something at us, beckoning Papyrus over.

"YES...I SUPPOSE I SHOULD...WELL, FAREWELL, SANS! FAREWELL, HUMAN!" He opened the door and ran out laughing. "NYEH HEH HEH HEHHEHHehHehhehhehheh heh h e h h  e  h ......!" He dashed down the path towards Waterfall, leavng Undyne and MK behind. Undyne shouted at him to wait up, and took off. MK laughed and started after both of them, tripping onto his face. He scrambled to get up, shook his head, and ran.

I sighed, smiling, and closed the door. "He sure has been training a lot lately. I feel like Undyne is up to something. Also don't you think it's a little weird that she called him over just before dark?"

"Meh, maybe she's finally teaching him how to fight, letting him join the Royal Guard." We both looked at each other.

"Pfffft-" We burst out laughing.

"She'd never put him in danger like that!" I chuckled. Sans nodded.

"But uh...whaddu ya mean she's up to something?" He fiddled with his pocket, pulling out an old ketchup packet. Snow outside the window drifted down slowly, foreshadowing a few inches overnight. He tore the edge of the packet and started sucking on it. I shuffled my feet, looking to the side.

"Well...We both know she and Alphys...ship us." My cheeks began to feel warm. He chuckled, finishing up the ketchup packet.

"Yeah." He shrugged.

That wasn't the response I was expecting.

"A-And Papyrus did catch us cuddling while taking a nap on the couch, so obviously Undyne heard, which means Alphys heard." I took a small step backwards.

"Yyyup." He popped the 'p'. He was avoiding eye contact and bouncing on his toes. I was getting anxious.

"I-I'm sorry, I didn't mean to make you uncomfortable, I can...I can go." I ran up to my room, shutting out the world around me. I didn't hear Sans say anything, just his door shut loudly. Throwing myself at my bed, I curled up and took a nap.

~

"Oh..! Sans!~" I moaned as he stroked my length.

"Yeah, pet?" He whispered in my ear, his normal, light-hearted tone gone, replaced with a deep growl that sent shivers up my spine. With each stroke, I shook harder, trembling helplessly at his touch.