Oh god. What nightmare fuel. YouTuber Life And Death shows us what happens when characters other than Mileena have access to Mileena's moveset and, more importantly, have her propensity for biting. It's... disturbing.
This grossness is possible thanks to a PC mod which swaps the meshes available to the characters — in this case, Mileena and Kitana have essentially traded skins. It makes "Kitana's" face look kind of hilarious, too:
Here is what happens when Jason and Ferra/Torr swap:
And what happens when Scorpion and Sub-Zero swap: