Some keywords to use in the prompt:

This LoRA was trained on AbyssOrangeMix2 - NSFW (https://civarchive.com/models/4449/abyssorangemix2-nsfw).

The LoRAs seem to work best between 0.9 and 0.99, but even 1 produces some nice results. All of the different versions produce slightly different themed images (not intentional, but that was the result).

All versions produce slightly different themes:

Best ones to try first:

1.03/1.04/1.05

What I've found:

1.01 Tends to be the most random, not sure why.

1.02 Tends to be semi-random..

1.03 Tends to have the best double blowjob output.

1.04 Tends to have the most common occurrence of 4+ (Larger groups) and creating a man with a vagina (MtF Trans)

1.05 Tends to have a good mix of 1.03 and 1.04

You'll have to play around with the different versions of the LoRA. I've had the best luck with "-003" at 0.95 to 0.98, but even at 1 it makes produces some nice outputs. They all produce slightly different results.

Example Prompt:

bimmf, bisexual male, bicouple, submissive male, threesome, masterpiece, group sex, group, 2boys 1girl, yaoi, a man and woman sucking a dick <lora:HentaiBiMMF-000003:.98>

Example Negative Prompt:

((EasyNegative)), worst quality:2, low quality:2

Other Key Word Examples (Play around, and remove words. I've had better luck with some of the earlier words [bimmf, bisexual male, bicouple, submissive male, threesome, etc...]). You can add "Yaoi" to get more male involvement in the produced image. It tends to have more correct results (2 guys and 1 girl) with "yaoi".

bimmf, bisexual male, bicouple, submissive male, threesome, group sex, group, 2boys 1girl, grabbing ass, stretching anus, finger in annus, testicles, penis, pussy, rear view, looking back, brother and sister, rubbing anus, dark skin

bimmf, bisexual male, foursome, bicouple, submissive male, group sex, group, creampie, yaoi, small breasts, anal creampie, cum, cum in ass, cum in pussy, school uniforms, 3 boys, multiple boys, 1girl, on a bed, bedroom, submissive guy, anal sex, vaginal sex, double penetration, sideways on bed, laying down, anal during vaginal, guy fucking a girl while being fucked in the ass, orgasm face, moaning, drooling, censored, censored genitals