(WARNING: This fanfic is a disturbingly dark and realistic Undertail fat fetish story. If you don't like that idea, I heavily advise you to look back and not waste your time spewing useless hate. Remember: Kinkshaming is still bullying.)

Ok, where should we begin? How about… once upon a time…

How many times have you heard THAT to begin a story? Let's try something else. What do we got? Let's see… oh! I know! Here's how to open a fanfic!

[Cue Star Wars opening, but with the fanfic's title in the Star Wars font.]

No, no, I don't think so… sounds too familiar, doesn't it?

[Cut to a book about to open.]

Oh, no! Not the book! How many of you have seen opening the book before?! Close the book! We're not doing that! How about we go where it all took a turn for the worse…

"Mettaton….. please wake up….."

Mettaton awoke to a huge headache, a wonderful smell, and near complete darkness. All he remembered was giving a snake monster an autograph and then he was knocked in the head. Coming to his senses, the robot looked around. He found his ghost cousin Napstablook looking at him.

"Blooky? Where are we?"

"I don't know… but I think it was that fan's doing…"

"Let's try to find a light."

Sure enough, Mettaton found a switch and turned it on to reveal everything. The walls were made from a silver yet clean steel. The smell was coming from a large similar colored box with a door, connected to a wall. One of the walls was actually a large, clear mirror. The door to the room was locked. Napstablook found a pile of disks and put one simply labeled "1" in a nearby music stereo. Out came a lustful sounding, whispery female voice.

"Hello Mettaton, hello Napstablook. If you are hearing this. You may have a lot of questions. If you're wondering what you're doing here, allow me to explain. My name is Preyy, and I've been a fan of you ever since I've discovered you. I knocked you both unconscious and I'm very sorry, but it was all for you to participate in a fantasy I want to make be finally real. I've had a weird obsession for quite a long time now, and drawing it wasn't enough for me… what I want you to do next is to open the silver box on the wall. Do so for a fan please?"

The disk ended and there was a clang in said box. Mettaton was reluctant but decided to go to the box and open it anyway. He was surprised to find what seemed to be a large box of fried chicken strips. No doubt meant for him and Napstablook. They both grabbed a strip for themselves and reluctantly took a bite…

It was delicious!

After chowing down the strips in their hands, they grabbed more and gorged on the chicken-y meal. The box was rather large, and there were a lot of chicken strips inside. The two devoured the chicken until there was none left. They wanted more but at the same time were full. Mettaton looked at the mirror and rubbed his now tight, stuffed gut. This wasn't like him… he then had a feeling in his stomach that he didn't want to feel especially now. Looking for a nearby bucket, it was too late and he puked up some of what once was the delicious fried chicken. Still feeling sick, he lied down to sleep the aching feeling off, with Napstablook following suit.

To be continued...