A/N- This is one of my favourite chapters so far, i think for good reason, I think it encapsulates the strength Meredith found when she decided that she wanted Derek all to herself. It pretty much follows on from the one before. Enjoy :)

"Hi," Meredith breathed as Derek pulled her into an embrace, having found her in the on call room once his surgery was over.

"I missed you." He told her. "I had to see your face again." He peppered kisses down her neck as he pulled her down onto the bed next to him. Meredith giggled as he rolled on top of her, rubbing her hands over his shoulders.

"Alex was teasing me again about last night." Meredith said as Derek's kisses moved down towards her breasts. "We need to work on being quiet when they're in the house."

"Okay." He said to quieten her as his hands roamed underneath her scrub top.

"I'm serious," she squealed as his tongue made its way to the hardened peak of her nipple. "They can hear everything, the walls aren't sound proof. They know when you're…"Derek's hands snaked down into her scrub pants, the pads of his fingers stroking her, making her moan. "I can get new roommates, keep doing that." Derek continued rubbing, his mouth moving onto her other nipple as her breath started to speed up, as she edged ever closer to her peak. They groaned when both of their pagers sounded, warning them of an incoming trauma in the pit.

"We'll finish this later." he said slipping his lab coat back on and holding up Meredith's so that she could do the same. She straightened out her scrub top and did the zip back up on her pants grabbing a quick kiss before the two of them left for the pit.

"Three guesses what you were doing." Alex jibed as the pair arrived in the ambulance bay.

"Oh, you're just jealous." Derek shot back running forward as the ambulance pulled in. Paramedic Nicole jumped down and gave them the information.

"Four car pile-up on the freeway. Multiple victims on the way, this guy is a 42 year old restrained driver, hit once before he span into the other lane and was then hit again by another car. Blunt head trauma, obvious depressed skull fracture and internal injuries. Vitals were stable in the field but his stats started to drop a few minutes ago. Leg has an obvious break, but we stabilised it in the field."

"O'Malley, come with me." Derek instructed, "he's definitely gonna need surgery." The pair ran inside with the gurney as a second ambulance pulled up.

"Ten year old female passenger, driver's side, hit by the first car. Obvious arm and leg fractures, unconscious on arrival, hasn't regained consciousness, we gave her pain relief en route but no change to her stats." Izzie wheeled her in with the paeds attending, as a third ambulance came screeching in.

"35 year old female, head on collision, impaled on shrapnel from one of the other cars, she lifted the blanket to reveal what looked like half a window protruding out from the woman's stomach. "Oh, and she's 36 weeks pregnant."

"Grey," bailey gestured to Meredith as she grabbed a hold of the gurney and began rushing inside.

"She seemed stable at the scene but she started crashing as we loaded her into the rig. We shocked her once and her rhythm came back, but I'm not sure what it did to the glass, we may have moved it more."

"Okay on my count." Bailey ordered as they reached the trauma room. "1, 2, 3" they lifted the young woman onto the gurney and began a full trauma work up. "Grey get the portable ultrasound, and page OB, I think we're gonna need them." Meredith did as she was asked, and dr. bailey scanned the woman's abdomen to check for internal injuries. As she finished her exam, the OB fellow joined them in the room, taking the ultrasound from dr. bailey. The room went silent as they listened for a heartbeat that they were all convinced wasn't there. There were gasps as a faint thudding sound echoed around the room.

"would you look at that." Bailey said shocked. "Impaled on half a windshield and still holding on, that baby's a fighter." They continued their work up before heading up to the OR to remove the glass. "You okay grey?" bailey asked her as they were scrubbing.

"Yeah, it's just, how is that kid still alive, shouldn't it be on the other end of that glass somehow?"

"It's a miracle, that's what it is." Bailey said back "we should be getting ready to tell distraught parents that the baby they've been planning for the last eight months didn't make it, but we may actually get to save the little guy. The world's a strange place grey; you gotta grab the miracles where you can. Come on let's see if we can't save two lives today."

"Grey can you take the baby." The fellow asked as she began to guide it out from the incision she'd made.

"Of course." Meredith replied as she grabbed a towel ready to receive the baby. The fellow placed the child into her arms, as she clamped off the cord and sliced through it. "It's a boy." Meredith whispered as she walked him over to the incubator. "Breath sounds are good and equal." She said as the baby began to cry. She let the paediatrician complete his checks and give the thumbs up before he left, then she wrapped the little boy up and held him to her chest. "It's okay little man, it's okay." She soothed. "I've got you, we just have to fix up your momma and then it'll all be fine."

"Meredith, if you want to take him up to the NICU, you can help with the glass when you get back." Bailey grounded her, in an attempt to bring her back to the surgery. Meredith placed the baby back in the isolette and pushed it up to the neonatal unit and signed him over to the doctors on call before returning to her OR, she hoped for his sake that the baby's mother lived. It was an awful way to start a life knowing that your mom wasn't gonna be there to see it. She scrubbed and walked back in, just as bailey was getting ready to pull the glass.

"Okay there's gonna be a lot of bleeding so I need you all to be ready. Grey, I want you to grip the glass and pull gently straight upwards, move it one millimetre from where it is now and you are gonna cause more damage, got it."

"Yes, dr. bailey." She whispered gripping onto the glass where she was instructed to, so that she wouldn't cut herself.

"On my count. I, 2, 3." Meredith slowly lifted the glass, trying to ignore the bleeding that she had instigated. When she was free from the body cavity she placed the glass onto the waiting table and joined her mentor at the table. "More lap pads." Bailey called. "Grey, see if you can locate that bleeder." Meredith placed her hands in the cavity feeling for the pulsation that indicated a bleeder.

"I got it," she said, placing her finger over the stem of the blood flow. "Clamp." She placed the clamp and the vitals began to pick up.

"Okay, I've got it from here." Said bailey. "Nice job dr. grey, you're a natural." They spent the next few hours repairing the damage from the glass, mostly superficial cuts and grazes, nothing too major. Bailey let her fellow close and she scrubbed out with Meredith, taking another opportunity to praise her work. "You kept level headed didn't panic, that's how a surgeon should be, and I was really impressed. Well done grey."

"Thanks dr. bailey, I'm glad I came back, now I get to tell that little boy that he gets to keep his momma." Meredith said, as she pumped th water pedal.

"You going back to see him? He really made quite the impression huh?" Bailey looked up at her, smiling at her resident's commitment to the case.

"I guess I just didn't want him to turn out like me, I wanted him to know he at least had someone looking out for him even if it was just a doctor." she said, trying to hide the pain at the thought of another child feeling asunloved as she had countless times during her childhood.

"Well that's nice that you wanted to help him, nice to see your maternal instincts shining through there." Meredith laughed as she dried her hands ready to leave. "And grey?"

"Yeah?"

"You were never gonna be just a doctor." Meredith left a smile on her face. Not just a doctor. Maybe she wouldn't end up being ordinary after all.

MDMDMDMDMDMDMDMD

"They said I'd find you here." Derek said walking into the NICU a few hours later. "How long was I in that surgery?" Meredith smiled at his joke.

"This is my miracle baby." She told him, "his mom got impaled on a piece of glass that went straight through her abdomen, but he still made it out okay, not a scratch on him. I felt bad leaving him on his own so I came to sit with him until his mom wakes up." She looked down at the little life in her arms smiling when he gave an almighty yawn, placing her finger in his palm. "It's been a busy day, hasn't it? Yes it has. I'm real tired too, but I have to keep working, because there are lots of poorly people to look after, yes there is, yeah." Derek watched her interact with the little boy imagining what she'd be like if they had their own baby someday. She definitely had a maternal instinct, and the baby looked content in her arms. She looked up at him quizzically. "This could be us one day." She said without thinking "I mean you know if someone we know gets pregnant or whatever." She corrected herself, until she saw his smile fade. "We could have one too, but you know not til I'm done with my residency and we're married or whatever." She stopped herself, and started to lay the baby back in the isolette. "Er so I better be getting back to my patients. I'll see you at home. Okay." She rushed past Derek, cursing at herself for not being able to keep her mouth shut. Derek smiled to himself; Meredith grey wanted a marriage and babies, his babies. He'd definitely have to hold her to that one.

"I'm an idiot." Meredith told Cristina as they were changing.

"You're an idiot," Cristina agreed "why are you an idiot?"

"I accidentally told Derek I wanted to get married and have kids." She pulled a face at Cristina, who laughed at her friend's apparent foolishness.

"Wow, you are an idiot, how do you manage to accidentally tell someone that?"

"I had a baby in my arms and the words just kept coming out. I got out of there before I could start planning wedding cakes and bridesmaid's gowns." She replied, knowing it was no excuse.

"See I told you, babies are toxic." Cristina reminded her as she slipped on her shoe.

"You got that right." She said grabbing her bag and pulling her shoes out. Cristina got up and made for the door.

"And Mer, if you ever force me to wear a frilly pink gown I am gonna kick your ass." Meredith laughed and followed her out.

"Better get home before I ask him to marry me again." She chuckled as Cristina rolled her eyes.

"Oh Mer, you are such an idiot."

MDMDMDMDMD

Meredith cringed as she remembered she and Derek had driven in together, cursing herself even more for not keeping her mouth shut. She spotted Derek waiting for her in the lobby. "Hey," he said, "you ready to go?"

"Yeah," she said following him out. "About what I said earlier, I didn't mean..."

"Meredith," he said turning to look at her. "I know you're not ready yet. Small steps. Maybe we should start by moving in together, something small. If it doesn't work out, we'll just go back to how we are now, it's fine."

"You want to move in together?" she asked, knowing her face was probably showing something close to terrified.

"Or something smaller." Derek countered, not wanting to scare her.

"No, moving in is good," She assured him, "I like moving in."

"Okay so we're thinking about moving in." Meredith stopped him with a kiss.

"Less thinking, more doing." She teased opening the car door, and shutting it when he tried to follow her in, licking her lips behind the glass. Derek tried to compose himself before getting in his side of the car.

"Dr. Grey, you're a tease." He warned trying not to react to her advances, instead concentrating on driving. His breath caught in his throat as she ran her hand further and further up his thigh. "I'm gonna crash this thing in a minute." He chuckled, willing her to carry on but knowing he shouldn't encourage her.

"Okay," she said seductively, slowly dragging her hand away. "I'll just have to think about all the things I want to do to you instead." Derek groaned, willing the drive to be over soon so that he could do all the things she was thinking about. He focussed on their decision instead. Moving in. Meredith grey 24/7 now there was a life he could get used to.

A/N- I know he pretty much lived there for most of their relationship, but I felt like it needed to be official as I think it's quite a big step for Meredith, but one I think she's glad he instigated. I have chapters written but not quite ready, so I'll get them up when I can. Thanks to those who've already reviewed, you're awesome! :)