Disclaimer: I don't own character, this week or the prompts. I just can take credit for the ideas that spawn from them.
So I'm a day late in starting. Finally found a moment to work, get this finished and uploaded. Hopefully from this point, I'll be on time and track.
Calor: Spanish for heat.
-oOo-

Ember Island's heat sent waves of sweat down Katara's barely clothed body as she moved quick circles around her opponent. The water that flowed along the tips of her fingers danced between her short covered legs, and brushed against the clothe covering her breasts as it slashed out at the challenger who was closing his distance. The wave barely missed her foe, as he stepped to the side; the flames at the end of his fists dropping in size as the water clipped the tops.

Katara smirked as she caught the curse that slid from his lips. She turned towards him in a spiral; her body moving effortlessly in the motion. The wicked smile on her lips continue to curl as she whipped the water about to her own whim. The attack moved in the formation of a single strand of water, rushing with rapid speed down at the chest of her opponent.

The strike hit home. She watched as his footing faltered, and without a chance to rebalance, he crashed backwards into a heap on the ground. Katara stifled a giggle as her opponent brushed back the stray locks of black hair that fell in front of his eyes. His ember eyes shinned with an intense light.

"Come on Zuko." She placed a hand on her hips, shifting her weight over onto the one leg; a habit the twenty two year old had found to become second nature. The superior smile on her lips grew even larger at the frown the down firebender tossed in her direction. "Just give up. You'll never beat me. After all these years, I'm still on the top of my game."

Zuko rolled his eyes at her banter. The frown on his face turned upwards. "I'm just going easy on you."

"Really now." Katara chuckled. "And why would you be doing that?"

"If I win you won't sleep with me tonight." Zuko answered with a shrug as if the answer were common sense.

"Oh really?" Katara's smile fought to remain as he countered her teases. The underlining request made her consider postponing their sparing session and heading right back into the beach house up the hill. "So if you win, you think I'd withhold sex?'

"Probably." Zuko made a move to get up. Katara didn't give him the opportunity. She closed the distance between them, and dropped down on top of him. Wrapping her legs around his waist, she draped her arms over his shoulders, taking in the heat that sprang from his bare chest.

She dragged her finger under his chin seductively, taking in the way his body heat shot up ever so slightly. The waterbender could practically hear his heart beating twenty miles an hour in his chest. Her own heart was racing, bringing her body heat high as well. Leaning closer, she pressed her chest against his, and whispered into her ear.

"Then maybe you should emit defeat. Maybe I'll show you mercy." Katara grinned while raising herself off of her chest. A cold air moved over her chest as the heat from his body left. A small frown pulled at her lips at the absence of heat.

Much to her pleasure, Zuko grabbed her shoulders and pulled her back towards his body before all of the heat was lost. The couple tumbled backwards, the shifting of weight sending Zuko toppling onto his back; Katara dropping back onto his chest. Her head rested in the crock of his neck, and she felt him playing absentmindedly with her hair. "I'm not ready to lose yet."

Neither of them noticed the heat of Ember Island.