Disclaimer: I, regretfully, do not own the characters of Grey's Anatomy. I know I wish I'd thought of them. For one thing, I'd be filthy stinking rich. For another, Addison and Derek would be in Hawaii on a second honeymoon and the parents of beautiful, beautiful babies.

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Author's Note: Thank you all for your kind responses, I'm so glad you've liked 33.3%! Please keep checking back for updates. Without further adieu, I present to you, chapter three!

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Addison was rambling on about something or another, but he couldn't focus on that, not after what he'd just seen. He opened the shower door and turned the hot water on.

"Get in the shower." Derek demanded, removing his shirt. His mind couldn't get the images out of his head. Seeing Meredith, coming out of Finn's shower, had brought a whole slew of emotions and memories crashing down, filling his head with only one thought.

Naked Addison.

Addison needed to be naked and in his shower. Naked Addison wasn't a panacea or anything, but it could sure fix this problem.

There was just one problem – Addison wasn't getting naked.

"What?" Confusion clouded her features. She fought the urge to surreptitiously sniff herself. She felt like one of those girls in the deodorant commercials. Did she stink? True, they hadn't been able to shower after their morning romp but she'd sprayed on enough Chanel Number Five, hadn't she? None of the interns were looking at her funny, the nurses hadn't been giggling at her…sure Karev had smirked, but Karev was always smirking. No, she decided, Derek didn't want her in the shower because she smelled.

Looking somewhat amused, she demurely refused. Where had this Derek come from? He hadn't been so pushy in a long time. She could only take it as a positive sign – if he wanted her in the shower, well, she shrugged, he wanted her. That could only be a good thing, right?

"Honey, it's a very small shower."

Play it cool, Addison instructed herself.

Derek remained singularly focused, as he unbuckled his belt and pushed his pants and boxers down his legs.

"You want to have hot sex?"

Yes, yes, yesyesyesyesyesyes.

Relief and abandonment filled her at once. She wanted to grab him in a knee-buckling, mind-blowing kiss but settled for a simpler response.

"Thank you."

She pulled off her blouse, loving the way his gaze wandered down to her almost-bare chest, blushing at the appreciation his look conveyed. Stepping out her skirt, she grabbed him in the very kiss she'd previously desired to give him.

As his lips met hers, she couldn't help the moan of approval that escaped. His hands roamed down her back, working off her bra and closing the shower door all at once.

It was hot, wet and exactly what they both needed.

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As Addison toweled off, letting her wet hair fall freely down her back, she questioned her husband. "So, are you going to tell me what that was all about?"

He froze in the middle of wrapping a towel around his waist, turning slowly to face her. He couldn't help but be distracted by his wife. Her pale skin glistened with moisture, her eyes were still dark with arousal and satisfaction, and her lips were swollen from his kisses. Though he'd seen her in a similar state earlier that day, he couldn't help but be side tracked.

"God, you're beautiful."

"Derek, really," Addison felt her cheeks flushing with color. She couldn't help but bask in the attention he was lavishing on her, it has been far too long since he'd made her feel this way.

He smiled, hoping to keep her distracted, to not have to explain exactly what had come over him. He didn't want to upset her; they'd been getting along so much better and the sex was back to being incredible.

"You are, you know. I don't tell you or show you, for that matter, nearly enough."

He came closer to her, making her breath catch in her throat. His eyes were darkening again, matching the arousal they'd shone with just thirty minutes ago. His hands slid up her arms, curling around her shoulders, pulling her body close to his.

She really, really wanted to know what had prompted this sort of behavior from her husband. He hadn't acted like this in over a year. But the kisses he was placing up her neck and the way he was nibbling at her ear made her want to push him right back into the shower.

"Der—Derek," Addison protested, "stop doing that 'I'm-going-to-kiss-my-wife's-neck-and-make-her-forget-everything' and ooooh, hey, I said stop that!" She pushed him away from her and swatted at his hands for good measure. She put her hands on her hips and glared.

Derek's smiled slowly, gazing deeply into her eyes. "Don't you like it when I make you forget?"

"Derek," Addison huffed. "Answer my question, or else."

He couldn't help but laugh a little bit. She really was adorable when she pouted or huffed.

"Or else what, Addie?"

She frowned before replying, "Or else I'll blow up this trailer."

Derek almost laughed out loud. He could hardly believe the difference she'd made in his mood. Only she could do that to him. Meredith could make him feel happy, sad, furious, but never turn his day around with a smile or even with shower sex. Not even the bendy thing they'd done had the power that Addison held over him. And he had to be honest with himself; the bendy thing was pretty damn great.

Addison sat on the edge of their bed, patting the space next to her. He took a moment to pull on a pair of boxers before sitting down next to her.

"So," she repeated, "why don't you tell me tell me what that hot sex was about?"

"C'mon, Addison," Derek whined, "can't a guy get some shower sex without all the questions afterwards? Do we have to do the thing?"

His wife nodded firmly and pressed onwards. "Derek," she sighed, "aside from today, you haven't behaved like this in a really long time, so I'm thinking something's up, something's happened."

He sighed and ran his hands through his hair, nodding.

"I saw Meredith at the vet's, she had wet hair and she was wearing his clothes."

Addison's jaw dropped.

THWACK!

Derek swore, cupping his cheek where his wife had slapped him.

"Are you kidding me, Derek? Are you kidding me with this? You got jealous because McVet was screwing your dirty mistress so you slept with me? That's really great, Derek, really fucking great. I love being treated as a consolation prize—"

Derek cut her off before she could continue.

"Jesus, let me finish, Addison! You're not a consolation prize; you could never be that to me." The look on his face when he said that quelled any hope of a response from his wife. "I saw Meredith coming out of the shower, Finn's shower, but that wasn't what prompted the shower sex. Do you know what today is, Addie?"

"It's Thursday, the 23rd," she responded flatly, looking both irritated and confused, her eyebrows arching and her eyes narrowing.

"I can't say if I'm relieved or upset that you don't remember the significance of today," Derek muttered. "Exactly one year ago, you and Mark…you know." Derek couldn't say it aloud, a nauseous feeling creeping up his throat at the thought of them, his wife and his best friend, naked on his favorite sheets.

"Oh," she gasped, "oh..." She continued on like that, sounding more and more morose with each passing second.

"Addison, Addie, don't be like that!" Derek had postponed this conversation for this very reason. He didn't want her to dissolve into a puddle of guilt, to spend the rest of the week looking apologetic, for every conversation to end with an awkward apology.

"I don't know what to say," she admitted quietly, turning away, unable to meet his gaze. "I'm ashamed of myself."

"Hey," he gently turned her face back to his, "I just—I need to know that you were mine." Derek gave her an encouraging smile. "I know you're sorry, I know you're never going to do it again, I just needed that hot sex to prove it to myself, to you, that I'm over it. I'm over Meredith, I'm over making you pay, I'm over making you think that you need a thicker skin, I'm just…over it, Addie."

They sat in silence for a moment.

Finally, Addison spoke, breaking the quiet that had descended over the trailer.

"Do it again."

He just looked at her confusedly.

"Do it again!" She was more insistent this time.

"What are you saying, baby?" Derek asked his wife, bemused by her demands.

She smiled, tremulously at first.

"For a brain surgeon, you're surprisingly brainless sometimes."

She turned and pushed him so that he was laying flat on his back, staring with confusion at the ceiling of the trailer. She crawled up his body, straddling his hips, kissing her way up his bare chest. Her lips ghosted over his as she repeated her earlier words, adding the final clue, watching his face light up in understanding.

"Make me yours."

He growled and flipped them over, listening to her shriek with surprised laughter before swooping down and capturing her in a long and thorough kiss.

"Do it again," she demanded, as soon as they broke apart.

He smiled widely, his hands moving to rid her of the towel she still wore.

"I will," he promised, "again and again and again and again, for the rest of our lives together."