Amber had noticed one thing about House, before she was fired - the man had chemistry with almost everyone around him. And she could play that game better than Thirteen or Cameron ever could.
She had tried Cuddy - the thong challenge should have been easier to win, after heavy-lidded glances and trailing fingers over patient files. It turned out that led to nothing, and ended in tears outside her last patient's room, her fingers scrubbing at her not-so-waterproof mascara at some late hour. But then Wilson came by. For the head of Oncology, he spent an absurd amount of time trailing after House's cases, and she knew at that moment, as he asked her what was wrong with worried eyes, that she could have what House wanted.
An offer of coffee led to drinks at a preppy bar off-campus led to her apartment, and ended in between her Egyptian-cotton sheets. The sex was amazing, Wilson letting her dominate him even as her newly-swollen lips closed around his cock. Her finger stroked over his prostate, and when his hands clenched in her hair she knew that she could take this, could move from not good enough to the best, could take this and turn it right back around on the bastard.
Her plan had never taken into account how ridicuolously endearing Wilson was though, soft whispers in bed and a muttered call me James over breakfast. And somehow it ended up turning around on her, and her desire for revenge mixed with a desire for both of them to get what they wanted.
Of course, she knew House wasn't going to roll over and take it, at least not as easily as Wilson had. After their last head to head over custody, she left James sleeping it off and slipped into a red suit that showed off her skin to its best advantage. She found House alone in his office, where he had choosen old files over Cuddy, Cameron, Thirteen - hell, probably even Foreman or Kutner. He might snapped Cut-throat Bitch at her, but his eyes snapped to her plunging neckline; when she clicked the blinds shut and he didn't move from that obscenely ugly recliner, she knew this was going to be easier than she had thought.
She cut off his sarcastic comment with her open mouth, and as his hot tongue slipped into her mouth and his fingers slipped into her waistband - she could taste her victory over the bitterness of his Vicodin. In that heated moment, she could see a future where she got it all ahead of her. Amber always got what she wanted, and if it meant House got to have it too, well - she could live with that. Maybe it would turn out good for all of them.