CivArchive
    bigger breasts and butts - v1.0
    NSFW
    Preview 90007986

    kontext lora to make breasts and butts slightly bigger you can run the output in again if it is not big enough or play around with the lora weights

    utilize the prompt:

    make the woman's breasts larger and her hips wider

    trained on a dataset of 50 pairs of images from VAM in which the same pose + clothing + camera angle is used on 2 different morphs one with small breasts and ass one with big breasts and ass, so far testing on realistic images works well. Males were included in the training data, in which they are not altered, however it seems that the model is sometimes altering male chests and butts. Works for anime as well. Works for both nude and and clothed bodies. In general it handles complex poses pretty well as the dataset used a good variety of poses.

    link to full write up on how this was trained and learnings from this experiment:

    https://www.reddit.com/r/StableDiffusion/comments/1m7qd8y/flux_kontext_lora_sliders/

    edit:

    after further testing it seems that the adjustment is a bit small, thus requiring too many loops of refeeding the output into the input to get truly massive breasts. Feeding the output into the input starts to generate noticeable degradation in quality which starts becoming very noticeable 3 iterations in. The dataset breast and butt enlargement is about twice as significant as the lora results so for future trainings I will keep in mind to exaggerate the before and after in training data

    Description

    FAQ

    Comments (16)

    ultraautism
    Author
    Jul 23, 2025
    CivitAI

    can someone tell me how to share a dataset on civitai

    nymicalJul 24, 2025

    You can put your dataset in a zip file and upload it along with the Lora safetensors you uploaded.
    Where your Lora safetensors file show, click 'Manage Files', upload zip.

    amazingbeautyJul 24, 2025
    CivitAI

    can i use this lora with negative value to get opposite results ? , you trained this on ai generated photos .. i think better to use real photos and the pair of each is to use hand edit one by one.

    ultraautism
    Author
    Jul 24, 2025· 1 reaction

    no it does not work i tried it i would have to retrain with start and end switched in order to make boobs and butts smaller. Hand editing is much slower than using vam I was able to get 50 pairs in less than 1 hour, if I were cracked and good at doing it i think i can build a smaller dataset in 15 minutes. Also VaM is computer generated graphics not ai. It doesn't matter the source style for flux when training a concept like this, believe it or not the "anime clothes removal" lora that was posted earlier works perfectly fine with real characters

    VeerGeerJul 24, 2025

    ultraautism Yes, so long as you hit the correct conceptual plane within the model through proper data labelling and counter-examples (i.e. data that has Nothing To Do with what's being trained, the 'don't change any of this' data), then strong models tend to generalize very well.

    VeerGeerJul 24, 2025

    ultraautism I read this:
    "The dataset I created included 21 pairs of images where both a woman and a man are both featured. While the woman received differences in body shape in the start and end the man did not. The prompt is also trained as “make the woman's breasts larger and her hips wider” which means the flux kontext transformation should only affect the woman but in many generations it affected the man as well. Maybe the flux kontext text encoder is not very smart."

    And it makes me think that you probably need duplicate images (i.e. "no change") of just dudes in various scenarios, some with the phrase, and some without the trigger phrase.

    VeerGeerJul 24, 2025
    CivitAI

    If you're "cooking an image", then krita-ai-diffusion tends to do a fantastic job as an image editor + diffuser implementation.

    However, I can point out - that there's nothing stopping you from using Kontext 'modifiers' like this on an image, possibly with a few loops, and then returning the image to be mildly re-cooked in the model that originally generated the image.

    As this accomplishes the same thing as doing manual edits in something like Krita.

    So the more FUNNY SLIDERS, the merrier!

    ZenpandJul 24, 2025
    CivitAI

    not work on nunchaku

    maddbuzz178Aug 14, 2025
    CivitAI

    thanx, working good (in Wan2GP by deepbeepmeep)

    maddbuzz178Aug 15, 2025· 2 reactions
    CivitAI

    @ultraautism Can you please make a version that makes only breasts larger but not hips/butts?

    SwedishkaviarOct 8, 2025

    u can use this prompt, works well for me.

    make the woman's breasts larger and her body slim

    brayn1701Aug 25, 2025
    CivitAI

    can this do boobs only and not butts? i have a few images that are keeping the female shape right but when changing clothing kontext is making them practically flat chested, i just need a way to restore the bustline alone.

    dabaiguzi392Sep 2, 2025

    use mask

    brayn1701Sep 3, 2025

    @dabaiguzi392 masks and kontext dont really seem to get along all that well, is all.

    noimporta342994Jan 11, 2026
    CivitAI

    You can create one that focuses on the legs, thighs, glutes