LoRA for licking navels. Most consistent between 0.7 and 1.5 weight.

Trigger: licking navel

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

Raise the weight all the way up to 1 or higher, get an image where the navel licking 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.

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