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