A/N: Hey guys, sorry for the delay, but I have a new update. And just as a warning, it's kind of porny. And I love pregnant Meredith, so I'm kind of overplaying this. I hope you like, it, let me know what you think!

Chapter 25: Stay Stay Stay

Today, I was exactly fourteen weeks pregnant. Baby was now the size of a lemon, and my stomach seemed to be getting a little bit bigger each day. I was also feeling a lot less nauseous, which made working much easier on me. However, at fourteen weeks, my hormones were also making me feel ten different things at once. For example, I had been horny as hell all week. But Derek and I were taking it slow, so I hadn't had sex since May, and it was now the end of August. I wanted sex, I wanted him, badly, but I didn't know how to broach the subject with him. Plus, it seemed like he was going out of his way to make my life miserable today, so not only was I horny, but pissed off as well.

Derek had just started his fellowship at the hospital a few days ago, and we were still trying to figure out how to make everything work. I didn't see him the first two days because I was off and then we had different schedules. But today we were working close to the same shift, and he insisted on picking me up so we could drive in together. So he had shown up at seven this morning, smile on his face and coffee in hand. This was why I wanted to kill him.

I was pretty much constantly tired. Being a second year resident meant that I got stuck working long hours and on call shifts at least once a week, and pregnancy made the exhaustion worse, especially without coffee. And Derek knows how much I have been struggling with the coffee thing, and he showed up this morning with a huge one that smelled so delicious when I can't have it. And to make matters worse, he didn't even bring me a chocolate chip muffin, which I have been craving like no other over the past couple of days. I swear, if he wasn't the father of the baby inside of me, I would consider killing him and have Cristina help me drag his corpse across the floor. But he seemed completely clueless to what he's done, because he's humming to some stupid The Clash song while grinning like an idiot.

"I'm pretty sure you're on my service today," Derek said, his voice all bubbly. I glared at him as he quickly glanced at me, a huge smile on his face before turning to look back at the road.

"Hmm," was all I could manage to respond as we pulled into the Seattle Grace parking lot.

"What, you aren't excited to work with me?" Derek said, his voice light though his smile had drooped a little.

"Whatever," I replied shortly as I climbed out of his car, slamming the door for good measure.

"Meredith," Derek began gently as he quickly got out of the car.

"What?" I snapped, turning around to face him.

"Is everything alright?" he asked, reaching for my hand.

"Oh, now you care about my feelings?" I wrenched my hand out of his grip, gesturing to his coffee cup.

"What-what are you talking about? Of course I care about your feelings," he replied, his voice filled with confusion.

"Obviously you don't care that much!" I exclaimed, once again pointing at his coffee.

"What are you talking about?" he groaned.

"I'm talking about-" I started, before suddenly stopping. "You know what? If you don't know, then I don't want to tell you," I stated before turning around and heading into the hospital.

"Meredith!" I heard Derek call after me, but I ignored him. I knew I was being childish by not telling him, but I was just so mad that he would even consider getting coffee for himself when I desperately wanted it.

I just wasn't sure how working with him all day was going to work out.

I'm pretty sure we almost broke up last night.
I threw my phone across the room at you.
I was expecting some dramatic turn-away,
but you stayed.

This morning I said we should talk about it.
'Cause I read you should never leave a fight unresolved.
That's when you came in wearing a football helmet and said "okay, let's talk."

"Did you feel like being an idiot today or are you seriously just that incompetent!" I practically shouted at my intern several hours later. Thomas, or Thompson, or something like that, had given a post op patient the wrong medicine. Luckily, the dose wasn't enough to do serious damage, but the patient had had a seizure because of the reactions between the meds, and now she was on additional medications to prevent further complications. If the woman or her family found out about the error, it would be my ass on the line.

"I'm sorry, Dr. Grey, I misread the chart, I'm sorry. I thought the patient was supposed to be given Pamelor, not Tambocor," the intern stuttered, which made me just more angry.

"Oh, you thought?" I exclaimed. "You just took a quick glance at the chart and thought the patient was supposed to be given Pamelor? A woman who is post op from cardiothoracic surgery needs a drug to fight depression? You are a doctor! You need to look closely at the chart so you don't give the patient the wrong amount, which apparently you are clearly too inept to do!"

I was definitely shouting now, and I could feel tears start to burn in my eyes. This was also a new pregnancy side effect, I cry whenever I get overly emotional.

"I'm sorry, the handwriting was messy and I had ten other patients to check on-"

"So you thought you would just breeze through my patients and give them crappy care! It doesn't matter if there are fifty patients waiting for you, you give them all the top notch care they deserve. And the handwriting is not that difficult to read, I can read it clearly right now!"

"Look, calm down, I didn't kill the patient!"

"But you could have!" I shouted. "There are a number of ways you could have killed her. She could have had another heart attack without the Tambacor to control her arrhythmias, or you could have given her too much Pamelor and killed her. She had a seizure just based on the dose you gave her! And if you killed her, do you know whose ass that would have been?" I paused, gasping as I wiped my eyes, which were spilling over with tears. "Mine! I am your resident, so I have to take responsibility for you. I could have been fired for your stupidity! I could-"

"Dr. Grey!" his voice came out of nowhere, and I groaned loudly. Derek was walking towards us, is expression firm but concerned.

"Yes, Dr. Shepherd," I sighed, looking up at him.

"Is there a reason you're shouting at Thomason in the middle of the hallway?"

"Because he's an idiot," I groaned.

"Because the pregnancy has made her a nut job," Thomason shot back.

"Are you freaking serious!" I exclaimed, moving quickly towards the intern.

"Meredith, Meredith!" Derek gasped, grabbing me around my waist to hold me back. "Thomason, that is not how you talk to your resident, who is your superior. Go to my office and wait for me there, where we will discuss the matter."

"Yes sir," Thomason said quietly before sulking towards Derek's office.

"Dr. Grey, a word," Derek said softly, leading me towards the nearest on call room and shutting the door quickly.

Before you, I'd only dated self-indulgent takers,
that took all of their problems out on me.
But you carry my groceries, and now I'm always laughin'.
And I love you because you have given me no choice but to:

Stay, stay, stay.
I've been lovin' you for quite some time, time, time.
You think that it's funny when I'm mad, mad, mad.
But I think that it's best if we both stay, stay, stay, stay.

Derek locked the on call room door behind him, turning around to face me. "What the hell was that about?" he demanded.

"What the hell was that? Thomason gave the patient antidepressants instead of medicine to regulate her arrhythmias. The intern is an idiot, and he's made mistakes like that under my watch before. I could be fired Derek! Not to mention what an ass you were this morning-"

"What do you mean I was an ass this morning?" Derek exclaimed. "How was I an ass? You were being a bitch!"

"You did not just call the mother of your child a bitch!" I shouted. "You insisted on picking me up this morning, Derek! And when you did, you brought coffee with you! After I was telling you the night before how I would kill for coffee! You pretty much rubbed my inability to have coffee in my face. And then you didn't even think to bring me anything. You, Derek Shepherd, are an insensitive jerk!"

"Are you freaking kidding me?" Derek shouted back, the anger and annoyance in his eyes surprisingly sexy. "How was I supposed to know I wasn't allowed to drink coffee anymore! You never said I couldn't. I'm sorry I can't read your mind Meredith, but you can't just be all pissy for no reason, you need to talk to me!" He ran his fingers through his perfect hair, which only made me more horny. The glint in his eye was dangerously close to the color it was when he was turned on, and then I couldn't help myself anymore.

I took two steps towards Derek before lunging at him, kissing him hard. Derek seemed surprised at first, but after a moment, he kissed me back hungrily. I wrapped my leg around his waist, and Derek grabbed the back of my thighs, lifting me up and carrying her to the on call room bed. His mouth moved from mine hers to my neck, trailing kisses along my jaw as I quickly ripped off his scrub top. His hands moved to my scrubs, pulling them off of me as I began nibbling on his ear.

"Meredith," he moaned as his mouth moved towards my chest, sucking on the skin along the edge of my bra. "Are you sure?"

"Yeah," I gasped I quickly pulled down his pants. "I need you."

"Mhmm," Derek managed as I finally pulled down his pants, his boxers going with them. He unhooked my bra, and pulled away from her as he quickly took off my panties, falling onto the bed.

"Mer," he breathed, kissing me deeply before moving his mouth downward, kissing and licking my neck and shoulders before finally arriving at my breasts. Derek's hand continued lower, trailing down to my center.

"Derek," I cried, arching into him and moving my hips reflexively as he slipped a finger inside of me. He slipped another finger inside of me, and shifted his hand so that his thumb pressed against my clitoris. I moaned at the touch, and became increasingly louder as his fingers began to move in and out of me. "Please, don't stop!" I panted as I rolled my hips into him. He kissed me hard, slipping his tongue into my mouth as I tangled her hands in his hair. I broke the kiss as I began to tremble, burying my face in his neck as I began to clench around his fingers. Derek stroked faster until I screamed his name, and I felt myself contract around his fingers as I came hard.

Derek slipped his fingers out of me, shifting so that he was hovering over me, and pushed a damp strand of hair out of my face as he kissed me deeply. I reached between us, stroking his, causing him to gasp in pleasure.

"Derek," I panted softly, raising my hips against him, "Please."

"Hmmm," he moaned as he lowered himself into me, filling me quickly. We both moaned in pleasure as he slowly pulled out of me and thrust back in. He continued to thrust slowly as I stretched to accommodate him, picking up the pace when I began to rock my hips against his, meeting each thrust so that he buried himself deeper inside me.

He thread his fingers in my hair, kissing me as my fingers roamed his back. I moved my legs, locking them around his hips in order to pull him in deeper inside me. I felt my body slowly tense, and I knew I was getting closer. Derek broke our kiss as he buried his face in my neck, while I moaned and shifted beneath him, my muscles beginning to clamp around him.

"Faster Derek," I commanded, though it came out as a whimper. "Derek," I begged, chanting his name until his mouth crashed over mine once again, almost silencing my. As I contracted around him, I broke the kiss, my hips bucking as I screamed his name in pleasure.

"Mer" Derek gasped, and I felt him twitch inside me as he came.

He collapsed on top of me, kissing my neck as my hand played with his hair, both of us trying to catch our breath. After a while, Derek slowly pulled out of me, holding me close as he rolled onto his side.

As we caught are breaths, I realized how irrational I was being, and I immediately felt guilty for getting so angry at him. And for the second time that day, my eyes started watering again.

"Derek," I tried to say quietly, but I ended up gasping.

"Mer?" Derek looked up suddenly, his eyes widening when he saw I was crying. "What's wrong? Did you… did you not want the sex?"

"What, no?" I said quickly, emitting a quick sob. "The sex was amazing, I've waited for a month for sex, and it was perfect. But now I feel like a bitch. I was mad at you for something stupid, and then I flipped out on my intern, and then I shouted at you. You were right, I am a bitch!"

"No Mer, no," Derek said firmly, pressing his lips against mine. "I should never have called you a bitch. You're pregnant with our baby, you're allowed to be crazy, and I had no right to call you that. I love you so much, and I'll do anything for you. If you really want me to give up coffee for you, I can."

"No, don't Derek," I replied, kissing him deeply. "Thank you for offering, but you don't have to. Maybe you could just not drink it in front of me all the time, this would make it all easier."

"I can definitely do that," he answered, kissing me quickly. "Now, I have an intern in my office who has been waiting there for me for quite a while."

"Just tell him you were otherwise occupied," I giggled as we both got out of bed, grabbing our scrubs.

"Oh I will," Derek smiled before grabbing me and kissing me hard. "I love you."

"I love you too," I smiled. "Will I see you tonight?"

"Absolutely," he grinned. "I'll wait for you after work."

"Okay, now go yell at Thomason," I replied.

"I will," Derek responded before slipping out of the on call room.

I rubbed my hand over my belly, smiling slightly at the thought that, despite our fight, Derek and I were just as strong as ever.

You took the time to memorize me:
my fears, my hopes, and dreams.
I just like hangin' out with you, all the time.
All those times that you didn't leave;
It's been occurring to me I'd like to hang out with you, for my whole life.

Stay, stay, stay.
I've been lovin' you for quite some time, time, time.
You think that it's funny when I'm mad, mad, mad.
But I think that it's best if we both stay.