Yay for ABDL!

Anyways, it's been a while since I typed an Undertale ABDL fic! As such, I wanted to make this one especially for a dear friend of mine.

Her name is diaperhorse, a good pal of mine on DeviantART. She also enjoys ABDL and wanted me to make a fic of Gaster being babied by his sons. And she got her wish.

I hope all of you enjoy it and I take no ownership to any of the characters!

Gaster opened his eyes and realized that he wasn't in his bed.

His pupils scanned the room and the first thing he saw was a mobile slowly twirling above his head. The little plush lambs that were dangling on it smiled down at him as he awoke.

"What...?" he sat up and looked around. "This isn't my room."

He looked all over the place to realize that this very room was his. However, there were a few differences from how it looked originally. Like all of his novels and science books that he had were replaced with stories for children. And all the new furniture like the changing table that stood perpendicular to the left side of the bed, and the rocking chair to the right.

And the crib he was sleeping in.

"Sans!" he called his sons. They may know what's going on. "Papyrus!"

No response.

He grabbed the crib bars and realized just as short they were. The crib was slight larger than a crib but the length of the bed actually came from the width of it, not the height. And because of this, he decided to climb out.

It was difficult to say the least.

For starters, his legs were as shaky as gelatin. When he lifted one of his legs, the one that was supporting his weight started to shake. He solved this by grasping tightly onto the railing of the crib and lifted himself up. But it was so hard to do this. It felt as if he was lifted two hundred pounds of weight without magic.

Magic...

He plopped back down in the crib and concentrated. Usually, it would come naturally. He would've lifted into the air in a purple aura and walk out of the room easily in order to see what was happening.

But...he just couldn't get off the ground.

"What the...?" he tried concentrating harder.

He squeezed his eyes shut and clenched his fists, doing his hardest to get off the mattress and leave the room. Nothing happened.

"Why is nothing happened?!"

"hey, i see you're awake! morning!"

Gaster turned his head to see the shortest of his sons peek out of the doorway. He opened the door wider and walked inside. He put his hands in the pockets of his hoodie as he asked.

"did ya sleep well?"

"Sans!" his father grabbed the railing of the crib and lifted himself up, cringing as he struggled. Once he was able to stand up, he asked. "What's going on?"

The smaller skeleton's grin grew a little as he stated. "hey, ya know, it's not nice to not answer someone's question dad. but..." he shrugged. "since ya seem concern about your situation, i'll explain. me and paps saw you stressed out a couple weeks back about your project in the lab. how you weren't getting it to work after working on it for like three weeks straight. we gave you a few muscle and magic relaxants and made this in order to get you to...well relax. so..." he smirked. "are you enjoying yourself?"

"No!" he answered. "Why would you two think any of this was a good idea?!"

"ya still seem stressed..." the short skeleton muttered, looking away from his father as he rubbed his chin. He then snapped his fingers, turning back to the older skeleton. "maybe some breakfast will make you relax a bit more!"

Suddenly, his hand started to glow a bright blue as Gaster's body was covered in the same aura. The older skeleton yelled and screamed as he was being lifted off of the ground, begging for his son to let him go. He didn't oblige.

They eventually walked into the kitchen, where Papyrus was busy making spaghetti, the usual dish. Sans smiled as he placed his hands behind his back, still keeping his dad in the air

"hey pap! someone's up and he's kinda fussy~!"

"I CAN HEAR HIM SANS." the taller brother stated as he stopped his cooking and turned his head to see Gaster floating in midair. He glared down at his brother. "SANS..."

"yeah...?"

"PUT HIM DOWN."

Sans obliged, gently placed their dad on the floor. As he was placed down, Gaster felt that they was something soft on his bottom. He looked down at himself and noticed that he was wearing a purple T-shirt and a large white diaper. His frown deepened.

"WHAT'S WRONG FATHER?" Papyrus asked. "NOT FEELING TOO GOOD?"

"Pretty much." Gaster replied. "Especially the fact that you two SHOVED ME IN A DIAPER AND MADE MY ROOM LOOK LIKE A NURSERY!"

"OH~!" Papyrus smiled. "YOU SAW YOUR ROOM! DID YOU LIKE IT?"

"NO!"

The younger brother turned to the eldest. "WOWIE...HE REALLY IS FUSSY!"

"told ya." Sans stated. "now if you excuse me, i'm gonna go watch tv."

"MAKE SURE YOU FEED ROCKY WHILE YOU'RE OUT THERE!"

"ok."

Papyrus sighed as he muttered. "HE'S NOT GONNA DO IT..." he then straightened up and smiled towards his father, who was currently struggling to get off the cold kitchen floor. "ANYWAYS," he picked up his dad bridal style before he could hurt himself. "ARE YOU READY FOR BREAKFAST?"

Gaster huffed but nodded just as his stomach growled. He needed some food in his system.

"TO THE TABLE! NYEH HEH HEH!" the younger skeleton piped as he walked towards the living room, his dad looking around to see any other changes were made to their home.

This story will possibly be five to ten chapters long (hopefully) so I hope you all stuck around for more!