In the New Cutey Honey series by Go Nagai, one of the main antagonists is a red-haired girl named Black Maiden. Throughout the story, she is revealed to be a new vessel for Cutey Honey's archenemy, Panther Zora. In
episode 4, Panther Zora wakes within Black Maiden, absorbs evil energies from another antagonist, and grows her childish body to that of an adult.
Episode 4 (20:09-21:25)
http://www.dailymotion.com/video/xrh...e-4_shortfilms
The transformation is also shown shortly in the second opening. 0:26-0:29
The pictures in the attachment are before and after.