Disclaimer: I don't own LWD.

A/N: This is based on the episode Tuesday Afternoon Fever. This is the last installment. Thanks to everyone who read and reviewed! Enjoy.

Derek had always scoffed at dance. Dancing was not anything even remotely close to a "sport" in his book. He had especially felt disdain towards guys who danced, guys who were sissies, not man enough for real sports.

So why did Derek find himself now as one of those guys? On national TV, no less, for everyone to see. The Great Venturi would be dancing for everyone to witness in a couple of minutes; Derek cringed at the thought.

In his right mind, nothing would have ever persuaded Derek to do this. Except Derek was never in his right mind, not whenever Casey was around.

Casey. Forbidden fruit. The girl who had tortured him for two years now. Ever since he had laid eyes on her, he knew his life would be hell. How on earth did anyone expect him, Derek Venturi, a teenager with raging hormones, to live in the same house with a girl as hot as Casey as his stepsister? Of all the girls who could have been his stepsister, it had to be Casey. Fate, Derek decided, had it out for him.

Derek had seen Casey practice dancing countless times since she had moved in. It was unavoidable with all the practice that perfectionist Casey forced herself to do. With her typical workout clothes of extremely short shorts and a tank top, Casey would practice her splits and high kicks, unknowingly giving Derek quite the show. Often times, Derek would hurriedly leave the room, feigning disgust at Casey's routine, only to rush to the bathroom for a cold shower, hoping that no one had noticed.

So when Derek had the chance to dance with Casey, the only answer was yes. How could he refuse? Dancing with her would be a license to do what he had wanted to for so long. He could hold her tight to him, touch her; dance was about body contact. Everything preciously held taboo in the real world would be accepted, even encouraged, in the dance world.

When their time to dance had come up, Derek had finally realized how wrong he had been about dance. As he spun Casey, one of her legs wrapped around him, Derek finally understood the appeal of dance and that guys who danced were anything but "sissies."

As Derek had stood next to a sweat covered, panting Casey, waiting for the announcement of the winners, Derek had never wanted anyone more than he wanted Casey at that moment.

It had been too much when they had won and Casey had excitedly screamed and gave him a hug. As the cameras turned off, Derek scooped a shocked Casey into his arms and took her backstage to one of the dressing rooms.

"Derek!" she screeched, only adding to Derek's lust. "Put me down!" she commanded.

"As you wish," Derek mumbled, setting her on her feet, and then unexpectedly pulling her body to his and kissing her with all the passion and lust he felt.

She gasped and broke the kiss. "We can't do this, Derek. It's wrong. It's…It's sinful."

Derek began to kiss her again, speaking in between kisses, "I…never…believed…in…sins…anyway…"

Derek felt Casey slowly give in, felt her begin to kiss back just as passionately.

Stepsister or not, Derek Venturi always got what he wanted. Always.

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