"Alright. Dinner is done," Mettaton said, finishing the spaghetti. Frisk crawled into the kitchen and reached up to Mettaton.
"Ton Ton!" She cooed, smiling.
"Hello, darling," Mettaton said, picking her up. Frisk's stomach grumbled loudly, making her giggle. She grabbed a bit of Mettaton's hair a started to chew on it. "Oh no, darling. My hair is not something you can eat," Mettaton said, setting Frisk down at the kitchen table. Papyrus set a plate of spaghetti down in front of Frisk, smiling. Frisk sat and looked at the spaghetti. She looked at Mettaton and whimpered. "Huh? W-What does she want?" Mettaton asked, looking at Toriel.
"Well, she can't really feed herself when she's this young," Toriel said, eating spaghetti.
"Oh, alright," Mettaton said, picking up Frisk's fork. He gathered some of the pasta, and began to feed Frisk. Frisk ate eagerly, getting sauce all over her face and shirt. During one mouth full, she took a deep breath and sneezed. Spraying Mettaton in the face with spaghetti. Mettaton flinched. A look of disgust on his face. He quickly wiped his face off, trying not to get his gloves dirty. He then continued to feed Frisk, being extra careful not to get sprayed again. When Frisk's plate was clean, Mettaton placed it in the sink. Just then, Sans walked into the kitchen with a smirk on his face.
"Hey Metroid, on a scale of one to ten, how stressed are you right now?" He asked.
"Sans, why are you smiling like that?" Mettaton asked. Sans just chuckled.
"Oh, no reason," he said, before running off, smiling.
"Sans!" Mettaton shouted, going after him. Sans ran to the living room and looked at Toriel, who was drawing on the walls with crayon. He gathered up the crayons and put them in his pockets.
"Hide! He's coming!" He said, giggling. Toriel nodded, running upstairs. Sans was about to follow, when Mettaton came into the room. He gasped, looking at the walls. They were covered in crayon and what looked like ketchup.
"Sans!" He shouted, extremely irritated. "I think you deserve a punishment! Wouldn't you agree?" Sans scrambled to get to the stairs, but before he could, Mettaton grabbed him. He picked the skeleton up by his sweatshirt hood. Sans squirmed in his arms, trying to get away.
"H-Hey! Put me down!" He squealed.
"Oh, I'll put you down, right after this," Mettaton said, holding Sans over his knee. Sans kept squirming around until Mettaton drew back his hand and began to spank him repeatedly.
"O-Ow!" Sans squealed, holding back tears. Meanwhile, Flowey had overheard the commotion, and was now watching this whole scene play out. He kept watching, holding back laughter. After a few more spanks, Mettaton picked up the skeleton and placed him in the chair in the corner of the room.
"Time out," He said, before walking back into the kitchen. Frisk was sitting at the kitchen table, crying. "What's wrong darling?" Mettaton asked, picking her up. Frisk kicked her legs and continued to cry. A look of discomfort on her face. Toriel walked into the kitchen and looked at Frisk.
"She needs to be buwped," She said, with a slight lisp. Mettaton thought for a second and looked at Toriel.
"How exactly do I do that?" He asked, with a confused look.
"Pat hew back," Toriel said. Mettaton placed Frisk over his shoulder and pat her back. Frisk stopped crying and let out a burp, spitting up on Mettaton's back. Mettaton shuddered in disgust.
"Ewww," he said, an uneasy tone in his voice.
"Sowwy, I fowgot to mention that," Toriel said. Mettaton set Frisk down and went to clean himself up.
Sans sighed, crossing his arms and pouting. Flowey burst out laughing. Sans glared at him, pouting.
"Hey! S-Sut up!" He shouted, gaining a lisp.
"Oh? Or what? You'll cry like the baby you are?" Flowey asked, with a chuckle.
"I'ww get the weed kiwwer!" Sans shouted, stomping his foot.
"Is that supposed to be a threat, Baby Bones?" Flowey asked. "Should I get Mettaton to give you another spanking?" Sans whimpered and grabbed the ketchup bottle from his pocket. He smirked and squirted it in Flowey's face.
"Take dat!" He said, smiling. Flowey wiped his face off with a vine and glared at Sans. Just then he smiled, breaking into a fit of laughter. "What are you waughing at?" Sans asked, confused.
"Oh, just a Baby Bones who wet his pants!" Flowey said, pointing to Sans's wet shorts. Sans whimpered. He felt tears burning in his eyes and he looked down. "What's wrong baby? Gonna cry?" Flowey asked, with a snicker.
"N-No!" Sans snapped, glaring at the flower.
"Hmm… I wonder what Toriel will think of you wetting yourself," Flowey said, smirking.
"W-What?!" Sans squealed, his eyes wide.
"Why don't I go ask her?" Flowey said, with an evil smile.
"D-Don't!" Sans said, panicked.
"Oh? And what are you offering me if I don't tell?" Flowey asked. Sans thought for a second. He whimpered, not being able to come up with anything. "I think I have an idea," Flowey said, with a chuckle.
"W-What?" Sans asked, looking at the flower. Flowey giggled.
"Well, Baby Bones. As your 'great' friend, I wouldn't want you going around without some… protection," he smirked.
"P-Pwotection?" Sans asked, confused. With that, Flowey summoned a vine and used it to throw something in front of Sans. With one look, Sans knew that it was in fact a diaper.
"Put it on, Baby Bones," Flowey said, smiling evilly.