Diana became Sebastian Ballesteros (male Cheetah) mentally.

In the heat of their fierce battle, Diana fiercely countered Cheetah's attacks, determined to thwart her nemesis's twisted plans. Cheetah, adorned with a brand new set of claws, skillfully evaded Diana's slashes, keeping the mysterious Boon close at hand. As Minerva leaped out of Diana's reach, a sinister grin crossed Cheetah's face.

_"Tisk, tisk, Wondy," Cheetah taunted, "Having trouble moving in your new body? I can't fathom why you'd reject a form so powerful. My ideas may be twisted, but that's precisely the point. I wanted my nemesis to bear the same curse as me, suffer as I have, all while I get to witness the degradation of your spirit."_

While Diana acknowledged Cheetah's twisted methods, shaping her into a body desirable to him seemed to take the conflict to an entirely new level. With Diana now possessing predatory prowess, she lunged at Cheetah once more. However, Minerva intervened, strategically using Diana's lasso to restrain her.

"Come on, Wondy, just stay still and relax," Cheetah gleefully urged, the Boon of Proteus in her left palm sparking with malevolent energy.

Diana yearned to continue pursuing and wrench the Boon from Cheetah's grasp. Yet, as her eyes met Cheetah's, she noticed a different kind of admiration in her foe's gaze. "Minerva... those curves. I never truly appreciated their beauty," Diana whimsically mused, her rage gradually transforming into something else. Despite knowing that Cheetah had turned her into a monstrous form, Diana couldn't help but recognize the advantages of her newfound physique – height, bulk, and formidable claws.

There was something more, though. As Diana, formerly an Amazon and now a big, robust, and predatory male, contemplated the outside world that had once been forbidden to her, a desire for new experiences with this altered gender stirred within her. Casting aside the life and spirit granted by Zeus and her mother, Diana was intrigued by the possibilities.

"Are you pleased with yourself?" Cheetah asked, noticing Diana's diminishing resistance to the restraining lasso.

"To a degree, yes," Diana replied softly. "I've always been curious about the perspective of an outsider. The teachings of Themyscira seemed foreign, and I've developed a keen interest in what you have to offer."

Encouraged by Diana's response, Cheetah cheered, and a transformation within Diana became evident. Minerva was no longer just a rival but now someone Diana looked up to as a partner. The mere thought shifted Diana's focus from fighting to admiring the Cheetah, creating a warmth and tingling sensation.

With a newfound acceptance, Diana began to forget her Themysciran teachings and her connections to the Justice League. Her loyalty shifted towards Cheetah, and even her name transformed – from Diana Prince to Sebastian Ballesteros.

Cheetah, pleased with her successful transformation of the former Wonder Woman into a loyal companion, untied Sebastian from the lasso. Eager to test if any resistance remained, Cheetah inquired, "So, Catboy, how are you feeling?"

"I-I feel wonderful. Thank you for this new form," Sebastian, the male Cheetah, responded, rising from the ground.

"Mhm... And who are you now?" Cheetah asked, coiling a brow. She had to be certain her mental conditioning was a success. If Diana was merely pretending to be controlled, there was a chance he'd backstab her given the first opportunity.

"I was once the Princess of Themyscira. In this world, mortal men knew me as Diana Prince, the secret identity of Wonder Woman," he recalled his past self with clarity. Deep down, part of him was still struggling. Diana fought endlessly to try and keep her head above water. But the will of her new self overpowered her at every turn, dragging her down deeper and deeper. "Please, call me Sebastian," he smirked, bowing before Minerva. He didn't know where the name came from, it just felt... right. "I offer my fealty to you," Sebastian declared, bending to honor Cheetah.

"Though, given the proportions of this body you've given me, I take it you are interested in... more... than a mere follower?"