Attempt #2 at a saliva swapping LoRA.

Trigger: saliva drop, tongue out, open mouth

(For male-to-female saliva drop: "submissive female")

One neat way to make your results more consistent without sacrificing much art style:

Raise the weight all the way up to 1 or higher, get an image where the Saliva Drop is happening (yes, this image will probably look awful, but bear with me), and then use Image to Image. Lower the weight back down to around 0.5 and set the Image to Image weight to 7 or 7.5 and then generate using Image to Image.

You'll get the act of Saliva Drop while also getting whatever art style you're aiming for, hopefully.