Tags: veiny breasts, blue veins, bulging veins, dark veins, milky nip, pregnant

This model is meant to give breasts various veiny appearances. Can be used with any SDXL 1.0 checkpoint and its derivatives: SDXL, Pony, Illustrious. The tags veiny breasts and blue veins have the strongest training data in the set and are relatively easy to make appear. For the overall model strength, exceeding 1.0 can have odd results, 0.75 seems to be a good spot for most models, unless you want very exaggerated features. For some popular checkpoints, their underlying dataset makes high LORA strength problematic.

It seems that each model is unique in tuning to get what you want. To that point, using the subprompt weighting style e.g. (blue veins:0.5), is a good way to tune individual aspects within the LORA. The milky nip tag needs a decently high subprompt weight, around 1.5 in order to get a milk dribble from the nipples. Some underlying checkpoints lack lactation images in their data, so they fail to make it appear until suddenly the whole breasts are covered in fluid, which is suboptimal. Finding a good comprehensive checkpoint that doesn't make the veins blow out everywhere is also important.

Similarly, the larger the breast size, the more most models produce a cartoony level of vein bulge which you will need to tweak with the LORA to get it to settle down. The best advice is to get some cheap test generations in before going to higher step counts. Base resolution is 1024x1024. Good luck. If this model proves popular enough, there could be a v2 at some point.

Update:

Civitai's image generation service struggles to make this model work on the site. I can use this model with amazing results on my own machine, but get bupkiss here. You are better off downloading this for homebrew. If you like it and got it to work at home, do me a favor and upload some stuff please. Personally, I have had good results with: https://civarchive.com/models/443821?modelVersionId=2255476 as the main checkpoint, most of the other versions are not viable.