When prompting for sex acts and including a 'dark skin' tag, most models will have the dark skinned character topping. Using this LoHa will generally reverse that, in the case of male/male sex specifically.

Pinups are easy, sex is difficult. Many models can't do it well or at all. I recommend AllBoyMix and other mixes from Bodlo for good yaoi sex poses. Using sex position Loras could also help.

There is no trigger word, just use "dark skin", "light skin", or "dark-skinned male", "light-skinned male", and prompt as usual.

It also has some dark-skinned femboys in the training data, you can prompt "dark-skinned femboy" to make the dark-skinned character smaller and girlier (but still clearly male).

Some example images show a comparison with "bleached", that is an older Lora (doesn't seem to be on civitai?) that basically has this function for hetero scenes. It doesn't really work for yaoi as it tries to make both males lighter, or the darker male into a woman. But it is there because I thought people would be curious how it compared.

"bwc-06" is the original name of the epoch that was chosen for the final version.