AI can't count. Ironic, yet apparently fundamental. In spite of literally every training image put into this being 6 breasts, you're gonna get anywhere between 4-8. I tried.

'multi_size_breasts' should theoretically produce 6 breasts, with the lower ones being smaller. 'same_size_breasts' should produce 6 breasts that are roughly the same size.

Put parentheses around the tag and put it early in your prompt!

So far I've gotten best results with DPM++ 2M Karras and the LoRA weighted at 1.2.