Note: Written for the BBT Kink meme on livejournal. (Prompt: Leonard/Penny on the down low - Turns out, he is that kind of guy. )
Leonard wastes no time when he finally arrives to the laundry room, pausing only to lock the door behind him before gripping Penny by the waist and backing her up against one of the washing machines. The clothes that she had been folding and refolding as she was impatiently waiting for him are dropped and forgotten on the floor.
She doesn't ask why he's late, and he doesn't offer an explanation.
He kisses her, and she can taste the alcohol on his tongue. He always drinks before they meet. Penny's not sure if he's drinking to gain some liquid courage, or in an attempt to reduce his guilt, or if there's even a difference between the two. All she knows right now is his tongue in her mouth and his hand snaking up her shirt and the feel of him against her thigh.
They don't talk. They don't need to. Penny arches her back, and he teases one of her nipples through her bra. He bites her lower lip, harsher than he ever did when they were dating, and she hikes a leg around his waist, pulling him closer.
He reaches between them and slips a hand inside her shorts - the shorts she'd worn purposely because she didn't want to deal with the buttons and zippers of jeans. He cups her through her underwear, and she's thankful for the washer behind her, because the one leg she's standing on goes weak and she's embarrassingly close to the edge already from building anticipation.
Penny drops her head to kiss his neck as he rubs her through the thin material. She bites where she knows he's most sensitive, and feels a surge of self-satisfaction when his hand misses a beat. Still, she's careful not to leave marks - she knows the moment they're caught is the moment his ends.
In response he pulls her underwear to the side, teases her entrance while slowly circling her clit with his thumb. She quickly unravels at his touch, hips jerking and Leonard's name caught in her throat.
He steps back to shed his pants and briefs (she wonders if that's another change due to Priya, because from day one she's always known him to wear boxers), and Penny kicks off her damp shorts and panties. Leonard then kisses her soundly, possessively. She puts up a half-heated attempt at fighting for control before submitting, turned on by the level of dominance he never quite displayed when they were together.
Leonard enters her swiftly, and swallows her moan of surprise and pleasure. She hikes her leg back up around him, then her other, so she's supported solely by him and the washing machine against her back. His hands grip her hips as he rocks against her, setting a quick pace.
By his fingers digging into her side and his increasingly frantic kissing and the groan he's not quite able to suppress Penny can tell that he's close. Knowing she'll need more to reach a second orgasm, she reaches a hand towards where they meet, but Leonard's there first, circling and pinching and oh god he still remembers what he googled… She comes again, clenching around him, and he gives a few more thrusts before he follows.
The waves subside and he drops his head to her shoulder, breathing heavily. She runs a hand through his curly hair and tries to savor the feeling of him inside of her, knowing that far too soon he'll be going back to Priya and she'll be returning to her empty apartment.
But for the moment he is hers, and hers alone.