A woman biting her lip. Also works on men, and monkeys. But was trained on only women.
STRENGTH: ~ 1.5, this range works well and most of the example images are around there. But much higher or lower can be effective. Seems to work with or without trigger words, was trained on "a woman biting her lip".
Works well with T2I, character loras, and detailed prompts where the character is already well defined, doesn't change much except lip unless prompt is very minimal. Kind of works on I2I but I didn't do much testing there. The actual bite effect can be somewhat random, experiment with prompt and seed for great results.
Potential issues: can make the head too small at high strengths, if I do a future version I will focus on fixing that, probably just need to caption closeups better. Minimal angle variety in training data, works best from front view and slight angles. Also, this was only trained on side-lip bites, I may try to add more variety in a future version.