Disclaimers: Joss Whedon and Mutant Enemy own all characters. I'm just borrowing them for fun not money.

Author's Notes: Thank you for the comments on my prior stories. Like any author, I thrive on feedback. It's been a long time since I've written a sex scene, so bear with me. I have another one started, but I wanted to write this one first.

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Pit Stop

Simon had watched Kaylee clean grease and oil off her skin many times, but thinking about it now, he wondered why he never assisted her. He decided that tonight, he'd change that. The idea of helping her shed her coveralls appealed to him and made him almost forget that he wore equally filthy attire and was covered in the same dirt and grime.

"Whacha thinkin' 'bout?" Kaylee asked sweetly, catching a guilty gleam in the doctor's eyes.

"Perhaps the notion of getting out of these clothes."

Kaylee arched a curious eyebrow. "Anything else?"

"Maybe, but you'll have to wait and find out."

Kaylee's eyes widened with mock shock before she started to giggle. "I could getcha outta those clothes mighty fast." She reached for the snaps on his coveralls.

Simon snagged her arms in midair. "How about we take things one step at a time," he suggested. He clasped her wrist and led her to the tiny sink in the far back corner of the engine room. "Ladies first," he insisted as he unzipped her coveralls and pushed them off her shoulders, freeing her arms. Lathering up a washcloth, he began to wipe the dirt and grime from her arms. He tried to hide a chuckle as he wondered how she managed to get just as much dirt on her skin under her coveralls as on the protective clothing.

"Wha'so funny?" she asked, standing impatiently. She couldn't wait for her turn to coddle the doctor.

"Just curious, bao bei. How did all this dirt manage to get on your delicate flesh?" He traced the cloth up and down her dirty arms, watching her eyes shine with excitement.

Kaylee laughed. "I had to roll up my sleeves a few times 'ca