This is a fairly simple low-noise only ???? lora. The goal was to generate realistic looking anuses in the right spot, that aren't massively gapped or abused, when one is not visible in the starting image. In particular this was aimed to work in conjunction with my pov face sitting lora.

Prompt is simply needs to include the word ???? somewhere for this to kick in. However, WAN seems to often have no idea where to put buttholes so the following helps a lot:

A woman presents her ????. Her ???? is directly above her vulva.

Obviously if the subject is on their back describe the ???? as being below the vulva. The lora should be able to add some specifics around what the ???? looks like such as:

a small round anus

The ???? is pinkish in color

Her ???? is centered, slightly puckered

Given the training material for this often had both a ???? and vulva, you can use it to control the shape and color of the vulva too but I've not tested that extensively. Critical keywords are vulva and ????? in terms of prompts.