I’ve thought about parametric breast curves and I think the catenary is the best mathematical function to model the curve in terms of “ideal” or attractiveness…
Obviously the proper axis isn’t horizontal but closer to vertical but not quite.
But what is it about this shape that is appealing? We don’t observe it in nature: catenaries are always man made…well, normally many made except when born of woman.
I suppose the shape implies youth, vigor, and elasticity…which seems a vulgar way to describe such beauty…but again the goal is to understand the fascination, not to be politically correct.
Anyhow, congrats on the catenaries! Much appreciated :)
https://en.wikipedia.org/wiki/Catenary