*The Dirty Pair
*Gunbuster & Daibuster
*The Gainax Bounce
*Yoko
*Project A-Ko
*Kill La Kill
*Black Lagoon
*Japan's wondrously lax censorship laws.

AND the fact that lots of these well-developed ladies are also certified, blue-ribbon bad-asses.

Knew each one except Gainax Bounce

*THE* Gainax Bounce. Wherewith young ladies in the bloom of womanhood enjoy quite buoyant mammaries as a matter of course.
Gainax introduced it in Aim For The Top! Gunbuster--it even made the opening credits-- and continued it through Tengen Toppa Gurren Lagann, where Yoko used it frequently to great effect.
Sunrise also deployed it generously-- and appropriately-- with their character Ms. Swan in their magnum opus of Giant Robo fanservice,, King Of Braves Gao Gai Gar.

so much love ^-^

verily

And tits.