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Lora Weight: Between 0.8 and 1, lowering it improves flexibility for things outside the LoRA training images and can get make your base model's or other LoRA's style more apparent, but can lower the concept's accuracy.

Vivian LoRA from Zenless Zone Zero:
Trained with around 55+ high quality images of character wearing clothes made out of tentacles. Specifically, I targeted those which showed mini-tentacles coming out of the outfit and less of the bigger tentacles. The LoRA is trained in a way that the tentacle clothes look can be applied on most outfits.

Simply using the trigger prompt first gives already pretty good results, but to get more specific or creative results, here are some prompts which worked well for me.

Primary prompts to experiment with: tentacle clothes, tentacles, living clothes, tentacles under clothes, tentacle underwear, clothing cutout, open clothes

Secondary prompts to experiment with: tentacle sex, slime (substance), impossible clothes, nipple stimulation, nipple tweak, monster, rape

Some prompts which work especially well for clothes: gloves, thighhighs, boots, bodysuit, skin tight, elbow gloves, leotard, swimsuit, latex, skindentation, collar, hat

Negative prompts: tentacle pit, penis, bulge, 1boy

If no background is described, it will sometimes default to a tentacle pit and sometimes, outfits with skirts will lift unnaturally as if the character had a tentacle lifting it. These negative prompts can help in those instances, otherwise, they are not needed.

Trigger Prompt:
ducklabzminitentaclesclothing

Cute Demon Girl:
ducklabzminitentaclesclothing, tentacle clothes, cowboy shot, 1girl, solo, tentacles, living clothes, tentacles under clothes, open clothes, groping, impossible clothes, demon girl, demon horns, wings, pointy ears, smile, aroused, twitching, sweat, heavy breathing, blush, peace sign, embarrassed, fantasy, forest, night, armor

Reverse Swimsuit:
ducklabzminitentaclesclothing, tentacle clothes, cowboy shot, 1girl, solo, tentacles, living clothes, tentacles under clothes, cutout, clenched hands, nipple tweak, nipple stimulation, bikini, corruption, full-face blush, pussy juice, saliva, trembling, forced orgasm, sweating, beach, impossible clothes, slime (substance)

School Uniform:
ducklabzminitentaclesclothing, tentacle clothes, cowboy shot, 1girl, solo, tentacles, living clothes, tentacles under clothes, open clothes, clenched hands, nipple tweak, nipple stimulation, school uniform, corruption, full-face blush, pussy juice, saliva, trembling, forced orgasm, sweating, school, impossible clothes, slime (substance)