There were a few certainties in life, and one of them was that House wanted to engage himself with Cuddy's body on a level that he'd never wanted to engage with a woman's body before. And why not? She had a gorgeous body, and he adored it, all of it. She had absolutely no reason to be ashamed or self conscious of it. Part of her sexiness was her undeniable self confidence; the fact that she could kneel right there in front of him, as naked as the day she was born and look like she had all the fearlessness and fortitude to take on the world, was a very powerful turn on. He was brash with her, possessive even; he objectified her, but it was an objectification of absolute exaltation. He just couldn't get enough.
They were both generous lovers; this had been well established. That generosity to one another also served to cater to the fact that they were both simultaneously driven to seek out their own physical satisfaction. House could be greedy, but he'd found, particularity with Cuddy, that he could also be equally as charitable, because giving her pleasure was just as, or better, than getting his own. And yet, he hadn't entirely expected her to go where she had just then, but the tilt of her suddenly devious smile told him just what her intentions were, even before she reached down to free him from his boxers and lean down to trace her lips and tongue over what had already become a painful erection.
He tilted his head down and watched her for a few moments, not making any move whatsoever to stop her, and with absolutely no intention of doing so. She had no qualms about oral sex, that also had been clear from the start. And that only intensified their already intense physical bond, because it was also a fact that he could never be fully physically compatible with somebody who wasn't at the very least willing to color a bit outside the lines of sexual boundaries. After all, besides that whole procreating to continue to propagate the species thing, sex was supposed to be fun.
It was almost enough just watching her, but soon enough the mounting pleasure grew to be so, that he had to give up his view when the back of his head bumped up against the headboard; eyes rolling shut, his features slacking into an expression of pure and unadulterated ecstasy. Ask just about any man alive, and they would tell you there were few things in life better than getting head; that wasn't misogyny talking, that was just the simple truth. It felt amazing, and knowing you were getting it from somebody who was doing it because they cared about you, made it just that much better.
He was certainly the quieter of the two of them in bed, by a long shot, but by the time he finally crested over the edge, he'd managed to groan out a few noises that were entirely incompressible in the English language, but perfectly clear in the universal human language of 'oh my fucking god'. Unable to do much more than just sit there for a minute or so, breathing gradually slowing, he opened his eyes at last, gazing at her with that glassy, post-climax look. Naturally, he wanted to reciprocate; touching her and tasting her were things he craved, but that just wasn't an option at the moment, at least not without some creative acrobatics that he was pretty sure she wasn't going to be too willing to perform.
So, he leaned forward, and wrapped his arm around her, drawing her right back up against him, Initiating a new round of deep, desperate kisses (and no, he didn't care at all where her mouth had just been) that soon trailed down into the crook of her neck, his fingers caressing her stomach and then down between her legs. When he was feeling more talkative, another time, he'd have to explain his playing the piano metaphor, but for the now, she'd just have to come to that conclusion on her own.