A/N - Here we are again, at the beginning of a story. I believe that this is going to be one of my main stories from now on, so enjoy the ride.
-Belleroo9
The short, thin monster sat up in the bed of sickeningly yellow flowers that they had fallen into. They stretched their neck up, looking at their past life once more before quickly closing their eyes, and standing up. Maneuvering each limb, placing each step warily in front of the other, they stalked up to the place where a small animal, like a cat and a dog chemically altered to fit together and make a disgustingly cute hybrid, was waiting for them.
"hOI! iM tEMMIE!" The small creature said to the bored child, who was dragging their tail across the ground to protect themself for the known attack. Temmie slowly stood up, stretched its limbs and hopped over the monster, trapping it within its two sets of legs. The child, knowing the attack by heart, simply moved very slowly, and was not hit. The animalistic monster growled and summoned a ring of bullets around the child's soul. Temmie' s voice changed drastically, and the bullets began to close in on the minor monster.
Suddenly, Temmie stopped. A while flash appeared from the right of the smaller monster's vision, and a short skeleton stepped out. The child, suspecting this diversion, tuned out most of the rounded skeleton' s dialogue, making sure to laugh at all the right times and to smile at all the right places. Soon enough, the older humanoid monster grabbed the kid by their sides, and picked up the armless child. The skeleton carried the innocent enough monster through the puzzles of the underground, and into the ruins of his tidy castle. The skeleton, Sans, showed the monster child to a room in which they could stay in, and sat down in a chair to read.
The kid looked up at the brightly decorated hallway, and contemplated Sans' motives. They knew that the older monster was more experienced than anyone, and that he would stop at nothing to keep the underground safe. But they could predict his every move and thought. At least... they thought they could.
The child walked down the slightly damp stairs to the basement, already anticipating Sans' disapproval. But nobody came. The lizard-like creature continued down the hallway, eventually exiting the ruins, and no one followed him. Sans had disappeared.
The orange lizard-like creature continued down the path to Snowdin, and stopped at the bridge block, as usual. They waited for a couple of minutes. But nobody came. They turned around and gave the area a quick search, but found no evidence of any living beings. They searched a bit further back along the snowy trail, and they found nothing... except one small animalistic child-like monster.
"yOU'RE back!111!" The short furry creature yelled excitedly, their eyes gaining a malicious tint. The child, surprised at this new turn of events, stepped back from the smirking animal.
" . IN THIS WORLD, IT'S KILL OR BE KILLED. I KILLED YOUR LITTLE COMEDIAN FRIEND, BECAUSE HE THREATENED TO KILL ME. LAST I SAW HIM, HE WAS LYING ON THE GROUND IN HIS BEDROOM, BLEEDING FOR SOME REASON. OH WAIT. THAT WAS ME. I ALSO FRIGHTENED OFF WHOEVER YOU WERE EXPECTING HERE. I HOPE THEY WEREN'T ESSENTIAL TO YOUR LIFE!" The monster's face had transformed completely from a congenial and friendly dog/cat to that of a murderous villian's, and the kid was beginning to fret over how different this timeline was. Usually, only small, subtle details, such as the exact location of somebody's house was the only thing that changed. But now... everything had changed.
A/N - Whew. So, this is an AU in which all of the character's appearances and roles have been switched. Such as, Temmie being the Flowey stand in (in their own way), and Sans being the Toriel stand in. So, keep in mind that Monster Kid is 'Frisk'. This will impact the story.. I already have a ton planned for this AU. Leave comments as to which characters and pairings you would like to see. I'm going to take requests for which characters should be in the place of which other characters, and which monsters are paired together, although I already have my own ships. I will attempt to weave in other ships though. Oh, and can anyone guess what happened to Sans? -Belleroo