It was the screams that did it. Actually, they were more like screeches or yelps, full of pain, and pleasure, and power. Nanny Contrary, the former Mary Marvel, in her very squeaky Mary Poppins'esque costume, had a very supple wrist and she was using it to discipline Girl Scout, the once Supergirl, it and her long metal ruler, that was.
Mighty Maid watched, ever the voyeur, her breaths tight with enjoyment. This was done for her pleasure after all. She could appreciate naughtiness of course, but discipline was the watchword, discipline and avarice, greed, pettiness, cleanliness, of course, but discipline was good too. She had brought up a cloud of memory erasing dust, a halo around them in order to keep people away as this was a necessary distraction before they could leave with their loot.
"Obedience," Nanny Contrary repeated again, as she gave her mighty whack. There was a bit of shazam's magic in that ruler, but most of it was her pure technique. "is," another whack against that reddened rear end. "Bliss." She finished, as Girl Scout's eyes crossed again, the feelings reaching her brain and sending mind-altering shocks throughout. Of course, it wouldn't last, not even with twenty whacks. It would with others, but Girl Scout was endlessly naughty. It just seeped back in, though she always did it for her mistresses. They always ended up back to this point, not that Mighty Maid minded in the least. She chortled as the young woman yelped again.
The yelps were on such a high frequency that anyone with a kryptonian background nearby would have heard, would have been unable not to hear. That's why the buxom, white costumed heroine with a hole upon her chest arrived. Power Girl stumbled on through the dust cloud and suddenly looked very confused. She'd heard some noise. Someone needed help. From.. well someone, and then she was... Well where was she?
Mighty Maid laughed and laughed. "Zhis is such a gift for moi. Some days zhey just like up for moi!" She sauntered over, waving her duster back and forth across the confused Power Girl's face. "Let us fix you, oui?" Her accent came in and out but when she was really working it seemed to fade. She undid the costume, pulling it down past the breasts, unleashing them for the world as Power Girl stood there helpless, her memories ready to be unwritten.
"You have ze teeeeeny tiny breasts, but are very smart!" Power Girl nodded, believing it even though she didn't physically change. Her self perception did. "Look up. Up. Into my eyes!" Mighty Maid tittered. "Good, now I am going to wave my duster back and forth and put air into your breasts, making them bigger, but as I do, the air will enter your mind as well." She began to do just that, waving her magic duster back and forht at super speed across the nipples of the superheroine.
Power Girl began to squirm but stood still, feeling her breasts grow larger with each wipe, though, of course, they really didn't. They were already their normal size. With each wipe, she felt the air enter her brain too. Finally she was a giggling mess with her chest jutted out and Mighty Maid stopped. "Now, look down at your breasts!" And she did, and once she did, she realized how huge they had become (though they were the same size as ever), and realized how much air had to have enter her mind and what an airhead she was. She squirmed, twirling her hair idly.
Mighty Maid laughed again. "Look good! You're not even human anymore are you! You're more air zhan human. You're Bimbette, my Bubble Boobed Blow-Up Doll, aren't you? You neeeed me to zhink for you!" Power Girl, her identity shattered, floated half an inch off the ground, moving up and down slightly, her mouth a perfect o as she nodded. Mighty Maid laughed again. "Tres bien, Bimbette! You may carry our loot as we go to our new hideout!"