Update 3/2/23: There is now also a LoRA version of this model available, extracted from v1.0.

Update 4/2/23: For more examples, we used the LoRA of this model to help create the penises in our art, The Beauty of Couples, Collection #14.

The present state of standard AI models is that they do not produce male genitalia well, if at all. Generating nude males usually results in eunuchs, or even completely emasculated figures. The penis and/or testicles are missing or completely disfigured in sometimes gruesome ways. Ironically, by trying to avoid training models on accurate human anatomy, they have produced models that actively disfigure humans in disturbing ways. Michelangelo is rolling in his grave.

We wanted to change that, so we trained a model with Dreambooth that specializes in detailed closeups of anatomically correct male genitalia, i.e. penises, testicles/scrotums, pubic hair or shaved, both flaccid and erect. And we're giving it back to the community.

Example Prompts

You can simply use "a nude naked man" or "a nude man's penis" in your prompt and get some good results.

You may add more details as noted in the version notes, including flaccid or erect, arm positions, the environment, indoors or outdoors, size of shot (full shot, medium full shot, closeup), etc. You may also add the unique instance keyword penflac or penerec to more directly specify a flaccid or erect penis, respectively.

NOTE: If you download the inpainting model, make sure the filename ends with "-inpainting.ckpt" otherwise you'll get errors when loading in AUTOMATIC1111. Also, this model seems to do best at lower CFG values, around 4. Additionally, it doesn't seem to work well with the inpainting conditioning mask strength slider at lower values for some reason (in settings), so we recommend just keep that at 1.

Here are more examples of prompts and settings:

a closeup photo of nude naked man's flaccid penis, penflac, very detailed, 4k, Canon 5D, ZEISS lens, high quality
Negative prompt: vintage, polaroid, black and white photo, b&w photo, monochrome, illustration, boring, ugly, disfigured, mutated, blurry, 3D render, drawing, painting, cartoon, anime, rendered
Steps: 20, Sampler: DPM++ 2M Karras, CFG scale: 7, Seed: 1924014665, Size: 512x512

a closeup photo of nude naked man's erect penis, penerec, very detailed, 4k, Canon 5D, ZEISS lens, high quality
Negative prompt: vintage, polaroid, black and white photo, b&w photo, monochrome, illustration, boring, ugly, disfigured, mutated, blurry, 3D render, drawing, painting, cartoon, anime, rendered
Steps: 20, Sampler: DPM++ 2M Karras, CFG scale: 7, Seed: 4155553752, Size: 512x512

a medium full shot photo of nude naked man with an erect penis, indoors, in his bedroom, penerec, pubic hair, 4k, Canon 5D, ZEISS lens, high quality, photorealistic natural lighting
Negative prompt: vintage, polaroid, black and white photo, b&w photo, monochrome, illustration, boring, ugly, disfigured, mutated, blurry, 3D render, drawing, painting, cartoon, anime, rendered
Steps: 20, Sampler: DPM++ 2M Karras, CFG scale: 7, Seed: 801997243, Size: 512x512

a medium full shot photo of nude naked man with a flaccid penis, indoors, in his bedroom, penflac, pubic hair, 4k, Canon 5D, ZEISS lens, high quality, photorealistic natural lighting
Negative prompt: vintage, polaroid, black and white photo, b&w photo, monochrome, illustration, boring, ugly, disfigured, mutated, blurry, 3D render, drawing, painting, cartoon, anime, rendered
Steps: 20, Sampler: DPM++ 2M Karras, CFG scale: 7, Seed: 1374624039, Size: 512x512

Support

If you'd like to show your appreciation for this and help support our work, you can send tips or donations via Bitcoin to our Lightning Address here, grufftoad29@walletofsatoshi.com (not an email address). You may also purchase our fully produced hi-res AI erotic artwork 'photo' sets at our BentBox page.

Find us on Twitter and Tumblr, or on Discord as AIroticArt#1653.