Simply put, this LoRA makes the characters in the image give a "くぱぁ" (kupaa. In other words Spreading pussy byself.). This LoRA specifically generates the hand that spreads the pussy.

0.2 to 0.6 is the practical range. When combined with other LoRA, it may be possible to use up to 0.8.

Weights will probably be around 0.4 with good results.

Based on Hassaku (hentai model) v1.3

https://civarchive.com/models/2583/hassaku-hentai-model?modelVersionId=106922

Weight-dependent changes in image

With a weight of 0.4, you have roughly half a chance of summoning a hand to spread her pussy. You can also have "negative_hand-neg" put in the negative prompt.