"In this corner, water bending teacher of Avatar Aang, and Avatar Korra, probably the only water bender to ever regret the use of blood bending, Katara!" Katara stepped out into the arena.
"And in this corner, half enemy to the Batman, half love interest to the Batman, and definitely into BDSM, in fact I'm pretty sure as much was said in canon, Cat Woman!" Cat Woman stepped into the arena, her hips swaying seductively as she did.
"Alright ladies, just a refresher on the new rules: the name of the game is making your opponent cum, preferably hard, by any means necessary, that still hasn't changed. Weapons, magic, special abilities, and summoned helpers may all be used. Full on combat is also allowed in order to make the opponent submit, just try not to kill anyone, and if it must come down to it, if your opponent tags out, you let them up. Alternate forms are also allowed to be used, basically any version of the character that exists may be used. The winner advances to the next round, the loser is disqualified, and the loser spends a full week as the winner's sex slave."
Both girls nodded, Katara looking nervously at the leather clad Cat Woman, who smirked and licked her lips. "If the combatants are set," There was a pause, during which Katara drew out the water from her water skins, and Cat Woman took out her whip, "Begin!"
Both girls lashed out, Katara with a water whip and Cat Woman with her water whip. the two whip strikes cancelled each other out, and both rushed forward. Cat Woman jumped up, sailing over the blast of water that Katara sent at her, landing on top of Katara and striking at her clothes.
"And Katara has been undressed!"
Katara's water reared up, wrapped around Cat Woman's torso and flinging her off of Katara. Katara got back to her feet, moving her hands to freeze some of the water around Cat Woman and sending it off of Cat Woman's body.
"And Cat Woman is undressed as well!"
The two girls, now completely naked, watched each other for a few moments. Both rushed forward with their whips, but Katara froze water around Cat Woman's ankle, causing her to trip and get ensnared in Katara's water tendrils.
The water yanked Cat Woman's whip away, then all six tendrils pushed into her Cat Woman's ass at once, making her cry out. Katara kept the tendrils pumping in and out of Cat Woman for several minutes, keeping her arms and legs bound down.
"And Cat Woman has reached climax! Katara is the victor!"
Katara released Cat Woman, who glared for a moment, then shrugged, as though not actually minding very much, "Nice water whips." Cat Woman complimented as they left the arena together.
"And benders continue to beat down non-benders, who would have thought? Next up is Luna vs Enchantress, it's a magical duel in next time, in the last round of the quarter finals in Yuri Tournament!"