A/N – Due to the lack of Mer/Der love on the show lately, I was forced to be um…creative. :-)

Let me say that I'm not very good at writing sex, so I hope I did them justice. Enjoy and please leave comments. Thanks!

The door to her room came crashing open with a loud thud as it hit the wall. Derek had Meredith pressed up against it and was kissing her with a raw passionate hunger, his lips devouring hers. With their mouths still fused together, he moved them aside so the door could close and backed her into the room. Their hands were everywhere, frantically pulling at each other's clothes. Reaching for his shirt, she impatiently yanked it open causing the buttons to fly in all different directions.

"Hey, that's my favorite red shirt." he said, breaking their kiss.

Pulling his mouth back down to hers, she parted her lips to allow his invading tongue in to mate with hers. Trailing her fingers down across his flat muscled stomach, she deftly undid his belt and worked at pulling his pant zipper down. Derek had succeeded in opening the clasp at the back of her neck and in one swift movement, unzipped her dress letting it fall to the ground. Standing in front of him wearing only a strapless bra and skimpy thong, she felt exposed to his gaze. Seeing the desire in his eyes intensified her need for him.

His hand moved to her back and with a light flick of his fingers, he released her breasts from the confines of her bra. Lowering his head, he took an aching peak into his mouth, teasing and sucking until she let out a moan. Taking his hand, she led him the rest of the way to the bedroom. In a heated frenzy, they discarded the few remaining pieces of clothing and fell backwards onto the bed with Derek landing on top of her. Caressing her skin, he feathered light kisses down along her stomach, moving lower still. Gently stroking the soft skin on her inner thigh, his fingers made a lazy pass to her core, smiling as he discovered she was aroused and ready for him.

Barely able to contain himself, he moved back up her body, gently parting her thighs and sliding into her warmth. He held still for a moment, savoring the feel of her around him. Running her fingers up his back, Meredith let out a satisfied moan at the feel of him filling her. He began thrusting into her, slowly at first then increasing the tempo when he felt her muscles tightening around him. Moaning his name, she arched her back off the bed to meet his thrusts. She screamed his name when she felt the wave of her orgasm wash over her. Derek waited until she finished, before he released into her. Collapsing onto her, he planted a soft kiss on her neck and rolled onto his side pulling her back into his body. Completely sated, they lay in each other's arms.

Moving from the bed, Meredith heard Derek protest as he tried to pull her back down.

"Where are you going?" he asked, holding her hand to keep her from leaving.

"I need a shower." Walking towards the bathroom, she turned and said "Care to join me?"

Not waiting for an answer, she turned around giving him a nice full view of her naked backside and walked into the room. Derek leapt out of bed and chased after her.

"Have I told you that you have a wickedly sexy body?" he said, nipping at the soft skin at the base of her neck.

"Hm…you're just saying that so I'll share my shower with you." she teased, feeling her core throbbing once again with desire.

"Yes, but the shower isn't the only thing I want you to share with me."

Turning on the water, they stepped inside and let the hot water wash over their bodies. Reaching for the soap, Derek began to lather her breasts, making her nipples harden into tight buds. Taking one aching peak into his mouth, he nipped and sucked until she let out an agonized moan.

"Derek, please…"

"God, Meredith…you're so beautiful. I want you again."

"Please make love to me. I need you so much it hurts."

Lifting her up, he placed her on his hips so that she was straddling him. Wrapping her legs around his waist, Meredith felt his length pushing up against her heated core. Leaning her against the shower wall, she let out a gasp when she felt the cold tile against her back. Moving his hands down between their bodies, Derek began to stroke her making her wet and ready for him. With a powerful upward thrust, he pushed himself deep into her. They groaned in satisfaction as their bodies moved together in perfect rhythm. Feeling her muscles contract around him, she arched her back and let the waves of her orgasm take her over the edge. Thrusting harder and faster, Derek was soon caught up in the waves of his own climax and released into her.

"Oh my God, Derek!"

Finishing the shower, they helped each other dry off and climbed back into bed where he lay spooning her naked form. Overwhelmed by exhaustion, they fell asleep.

Meredith woke with a start when she felt something tickling her ribcage. Turning her head slightly, she prayed that it would not be him. Please let it be anybody else but him. Her heart fell when she turned and looked into his all familiar face. He was asleep soundly with his arm lying possessively across her waist. The events of the previous night started flooding back into her still sleep-deprived, alcohol-induced brain. How could she have been stupid enough to fall into bed with him, knowing he still had feelings for his ex.? She saw them kiss. She saw how they held each other.

Stupid! Stupid! Stupid! What the hell have I done?

She tried to scoot off the bed as slowly and quietly as possible but stopped dead when she felt him stir. She panicked and froze with her arm in mid-air and left leg dangling off the side of the bed. She waited awkwardly to see if he was going to say something, but thankfully he rolled over, moved his arm off her waist and fell back to sleep.

Think band-aid, Meredith. Just do it and do it fast!

With that thought, she leapt out of bed, tripping over her shoe and fell rather ungracefully onto the floor. Cursing silently to herself; she grabbed the shirt that laid discarded at the foot of the bed, turned to look at him one last time before heading to the living room area.

Please be there. Please, please pick up the phone!

After the fourth ring, she heard a really pissed "Hello!" on the other end of the line.

"Cristina!" she frantically whispered into the phone.

"Oh, what did you do?"

"Wh—why would you think I did something?" she stuttered lamely.

"Because it's four o'clock in the morning here and I know you're smart enough NOT to call me when you know I need my sleep to prepare for the humpty dumpty surgery I have to perform in less than three hours!" she yelled over the phone.

Meredith winced at the sharp pain that shot through her head and ears.

"Besides…," she continued "I'm your person and as unforgivable as it is to wake me up at this ungodly hour, I know you must've screwed up so spit it out and tell me what you did."

"Well, I…uh…"

"For God's sake, just say it or I'm hanging up the phone!"

"Okay! Derek and I had sex."

"You had sex with Derek at his ex-fiancée's wedding?"

"Yes"

"Last night…you and Shepherd did it?"

"Yes"

"You and McDreamy…did the nasty nasty."

"Cristina!"

"I'm not judging. I'm just trying to wrap my mind around it" she paused before continuing "Was he good? He looks like he'd be good. Was he any good?"

"Can we not talk about how good he is?"

"So he is good."

"Cristina!"

"Sorry. What about the ex?"

"What about her?"

"What's she like?"

"She was ugly, very ugly…except she was tall and beautiful."

"Does it look like he's over her?" laughing to herself, she continued "Well he must be if he slept with you."

"I don't know if he's over her."

"You don't know? How can you not know?"

"I saw them kissing yesterday."

"You saw them kissing."

"Yes."

"And you slept with him?"

"Yes."

"After you saw them kiss, you slept with him?"

"Yes. There was a lot of alcohol involved and I couldn't help myself."

"Do you know how stupid this sounds?"

"Yes."

"Are you going to at least ask him about it?"

"No. He's never going to know that I know."

"Oh, that's smart Mer. Do us both a favor and talk to him. If he's not over the ex, you'll at least be able to finally move on. Talk to him or I will fly my pretty ass down there and ask him myself and don't think I won't do it. Call me later."