Doesn't work, maybe you need a trigger word?

I had to use -10 strength on a tight t-shirt to get to a size A (cup A).

It works perfectly, thank you so much! In case anyone is still confused: after you load in the lora there is a slider in the node called strength_model. That's where you can adjust the values.

I use this with SwarmUI and it works perfectly. It does not seem to affect other parts of the image such as the face etc at all and leaves them unaltered which is very welcome.