Water
Obviously, she's better at distracting him than he'd ever admit, because barely five minutes later, her back hits the tiled wall with a sharp thud, and the ripping of fabric fills the air until a well-shredded sundress lies in a little heap next to the shower, quickly joined by his clothes.
Soon enough, she stops being obnoxiously smug about it, though, because he's making it just about impossible to think about anything else, hands and mouth roaming as insistently over smooth dusky skin as hers over fair, lightly freckled, babysoft skin. vibrantly red hair streams with water and hangs down almost to his shoulders, mingling with silvery blonde as he pulls her closer, the one hand gripping the back of her neck, for another long, breathless kiss that promises to lead to more. It takes a little imagination, figuring out a way to do this in the shower without either of them slipping and sustaining head trauma or shattering the glass doors by falling through them, but eventually they find a way, heavily involving a white-knuckle grip on those towel-racks he put in for just this occasion, and through the roar of the water and clouds of steam, their cries reverberate off the tiled walls.
End Notes: Hee! More pseudo-lemony fun. What can I say? I'm an addict. :D