Disclaimer: We don't own it!

I am so so so so so so so so so so so so so sorry I feel I might need another word for sorry. I have no excuse really. I had been writing this story at the end of July 2012, but the day of my graduation party my Mommom passed away, and that left me really sad for a while. And then I had to focus on packing my life away into a car to move to Pittsburgh into a dorm room and go to college. Then I had to focus on my school work (not very well I might add, my dreams of becoming a doctor are a little far away now and I have decided I might go to PA school instead of medschool after these four years). And now that I am so into Downton Abbey and started my own fic for that (if anyone watches please read it, it's called Life of a Lily, those chapters are already up to chapter 13 in my documents folder, just not published, so it will be updated a lot more regularly than this or LMFY) I felt really guilty for never updating my Grey's fics anymore, and that gave me motivation. So here you go! Again, I am so sorry :( Oh and this is all my fault, not iSeriouslylovegrey's, just me, Lyss.

LyssLovesTiva33 chapter (: So though we don't think the Shepherd's are right at all, but it is true that Meredith and Derek have taken on a lot on in the past several months. With a new baby coming, they will have very little time for a break. This chapter is about them getting a break, and the hilarity that ensues when they give Cass and Maeve to the unengaged parents to be Mark and Lexie…

Here it is!

"Mom, Dad, come on," Cass whined, grabbing the closest duffel bag to her and dragging it towards the stairs.

"What's the rush?" Meredith questioned.

"Nothing," Cass mumbled and dragged the bags again.

"You don't think that just because Mark and Lexie are going to be watching you mean that you will get away with everything, do you?" Derek appeared out of nowhere behind her, a stern look on his face.

"Of course not daddy," Cass blinked up at him innocently.

"Why do I not believe that?" Derek chuckled.

"You are gonna miss your flight," she pointed out.

"We are going to California," Meredith rolled her eyes. "Your father won't let me go further than that for this baby moon so if we miss this flight, we can catch another like, two hours later."

"Baby moon," Cass giggled.

"You're father is an idiot," Meredith agreed and Cass cheekily grinned towards Derek.

"Well, we never got a honeymoon and now that we have two babies…"

"TWO!" Cass exclaimed in outrage.

"Caaaa!" Maeve giggled.

"Yes, Maeve and your baby brother," Meredith answered.

"I was gonna say… I am nine," she huffed.

"So I really have to deal with this all weekend," Mark groaned walking into the front door.

"Mark!" Cass abandoned the suitcase and jumped into her knowingly already outstretched arms. "You're just kidding; you love me and Mae Mae!"

"Maybe I'll teach your kid some grammar while you two love birds are off to… where you going again?" Mark chuckled.

"LA," Derek answered.

"Why are you going there again?" Lexie asked, walking in behind Mark.

"Get used to this," Mer groaned. "Almost into my third trimester Derek does not want me in the air long enough to go to Hawaii. So I am stuck with California."

"And I am stuck at home, instead of work, because Lexie insists that we not put them in daycare," Mark said teasingly. "It's a whole weekend."

"And Monday," Lexie added.

"Don't remind me," Mark groaned.

"I'm gonna get my stuff!" Cass giggled happily. "And Maeve's… for a baby, she has even more than ME!"

"Do you think you can handle a rambunctious nine year old and baby sister following very closely in her footsteps?" Derek smirked.

"I have to get ready, don't I," Mark sighed, looking at Lexie. "You know she said she is not even going to consider marriage until after this baby is like, three, that's what she told me the other day."

"She'll come around man… it wasn't long ago that she didn't even want to move in with you," Derek reminded. "CASS! Get down here now! We have to go!"

"Coming!" Cass giggled and flew down the stairs.

"And despite what she just did," Meredith narrowed her eyes at her daughter. "She is not allowed to run down the stairs." She picked up Maeve out of her stroller and nuzzled the baby to her chest. "Can I count on you to make sure Cass behaves."

"Mama," Maeve patted her face.

"Reassuring," Mer sighed. She kissed her nose. "I love you baby girl, see you in four days." She handed her off to Derek and opened her arms for Cass who ran into them.

"Have fun Mommy," Cass giggled. "And bring me back something!"

"Cassandra Noelle," Derek chastised.

"I love you," Cass smirked and ran to Derek who placed Maeve into the stroller. Derek picked Cass up for a hug, Cass kissing him on the cheek. "I know you'll bring me a present Daddy," she teased. "I love you!"

"Brat," he mumbled and Cass gasped in mock disbelief.

"Now you have to," she pouted.

"Of course I will sweetheart," Derek kissed her cheek this time. "I love you both, be good for Lexie and Mark."

"Who do you think we are troublemakers?" Cass giggled.

"Behave," Meredith kissed her head. "And we are just a call away."

"I know, now we will leave so you can leave," Cass smirked. "Bye!" In one hand she had her bag and then grabbed Mark's hand, to pull him out the door.

"Cass will help with Maeve if you have any trouble," Derek called after them. "You two feel free to call us too!"

"We got it Derek," Lexie smiled. A few seconds later, the door slammed.

"What have we done to our daughters Derek," Meredith giggled.

"What have we done to Mark and Lexie," Derek countered, kissed Meredith quickly on the lips, and carried the last of the bags to the car. Ready to start their babymoon.

"Mark, I'm hungry," Cass said as she suddenly popped up from behind the couch of what used to be her mother's house.

"Whoa!" he exclaimed, throwing the newspaper that was grasped in his hand up in the air. "Cass, was that really necessary?"

"I'm hungry," she repeated with a giggle.

"Are you purposefully being annoying?" Mark questioned.

"No… I'm being Maeve," she informed him. "Lexie's in the shower and she has been crying… and it's her hungry cry."

"What?!" Mark said up straight and trained his ear. Above the roar from the shower he heard the faint cry of his niece. "Why didn't you tell me?"

"I just did," Cass giggled. "And if you are going to be a dad, you need to learn. Babies have different cries and-"

"I am an Uncle, I've held babies before and I have fed and changed them," Mark informed her getting up and picking up Maeve who was lying in her playpen.

"Why are you and Lexie having a baby if you aren't married," Cass asked out of the blue as Mark carried Maeve to the kitchen. If he hadn't been carrying a baby, he probably would have dropped everything in his hands as his eyes widened and he whirled around to look at Cass.

"Um… uh…" Mark mumbled. He was going to kill Meredith and Derek for not explaining this to their daughter before. "Well, we didn't mean to get pregnant."

"Do you not want this baby?" Cass frowned.

"I never said that," Mark defended himself. "We just didn't plan out this baby."

"Everything doesn't always go as you planned, Eileen and David wanted boys but they got Maeve and I instead," Cass informed him.

"Well I'm very thankful for it," Mark smiled. "Because then you would never be my niece."

"Do you regret getting pregnant?" Cass asked.

"Yeah Mark… do you?" Lexie said suddenly, coming into the kitchen her hair wrapped in a towel.

"Lexie," Mark gasped as Cass reached for the Cheerios for Maeve.

"Answer the question Mark," she said in a monotone voice.

"I love this baby and I love you, what more do you want?" Mark questioned. "What more could I want but the family I am getting?"

"You've been hanging out with my dad too much," Cass giggled.

"Mak! Mak!" Maeve giggled.

"And what makes you say that?" Mark asked as Lexie poured Maeve's Cheerio's for her.

"You're corny," Cass smirked and dashed behind the wall.

"Why I ought a- " he chuckled and followed after her leaving Lexie with Maeve.

"We're here!" Derek alerted his wife as they pulled up to the beautiful boutique hotel right in Los Angeles. The hotel had an infinity pool that overlooked a gorgeous vista and had a charming rooftop garden where visitors could sip drinks leisurely into the evening. Meredith took everything in as they got out of the cab, Derek carrying all of their bags.

"It's beautiful Der." She kissed his cheek and they walked into the lobby. As soon as they entered the lobby the front desk people became instantly peppy.

"You've finally arrived! Mr. and Mrs. Shepherd! Congratulations on the big day and we are thrilled that you picked this hotel for your honey moon!" Meredith turned bright red and Derek chuckled.

"Derek…" Meredith growled.

"Did I forget to tell you?" He said through suppressed laughter.

"Mrs. Shepherd! How ever did you get that baby bump to fit in a wedding dress? I'm sure you looked gorgeous though!" Meredith looked horrified and pulled Derek off into an elevator alcove.

"DEREK!" Meredith hissed, "You have got to be kidding me! You told them it was our honeymoon? Now they think I'm some whore who was pregnant at her wedding! Seriously!?"

"Mer, calm down! I told them it was our babymoon and I think they just misunderstood me over the phone. I'll go over there and get it all straightened out."

"Just as long as they don't give us weird wedding themed crap all over the room then I'm good. I love being called Mrs. Shepherd anyway." She kissed Derek softly, pulling back as Derek grew more passionate with the kiss.

"Hey!" Derek complained, Meredith giggled.

"Don't worry, I'm saving something extra special for the room…"

Finally the "happy couple" had settled into their room. After taking a nice bath together with lavender oils Derek wanted to take a walk and explore the area. Meredith agreed and they decided on talking a stroll in downtown LA. They walked hand in hand out of the lobby and through the streets, Derek wanting to stop every once in a while to get a picture of Mer resting her hands on her baby bump, that obviously didn't last long. After about an hour and a half of walking Derek thought Meredith needed a break. They stopped at a local coffee shop, Meredith taking the opportunity to sit down at a table while Derek ordered for her.

"Hello Sir what can I get you?"

"Can I have a large coffee and a iced chai?" The lady nodded.

"Coming right up!" Derek smiled and placed two dollars in the tip jar after paying. All of the sudden he heard a familiar laugh behind him. Derek spun around quickly and was faced with Addison and a handsome man who was unfamiliar to Derek.

"Addie?"

"Derek!" Addison gasped at the sight of her ex-husband. "What on earth are you doing here?"

"I'll explain later," he chuckled. "How are you?" He opened his arms for a hug. "I haven't seen or heard from you in ages."

"Great actually," Addie smiled. "This is my boyfriend, Jake."

"Hi," Jake introduced himself.

"Hey. I'm Derek, I'm Addison's uh…" Derek trailed off.

"I know who you are," he smirked. "Nice to meet you man."

"Are you here alone or is Meredith here?" Addison asked.

"Yeah she is actually sitting right over there if you guys wanted to come join us." Addison nodded. Suddenly Jake's phone went off.

"Crap," he hissed. "Emergency."

"You go, I'll stay here," Addie told him.

Jake gratefully kissed her on the cheek, grabbed his coffee, and left. But not before calling over his shoulder; "Why don't we have dinner before you guys leave."

"That's a great idea," Addie smiled. "We… well we are past everything and I think I'm ready to accept you two as a married couple since the last time I saw you, you weren't even engaged."

"Look at us, we are adults," Derek laughed dryly. "I'm sure Mer wants her tea."

"Only tea?" Addie followed him.

"You'll see," he smirked.

"Thank god Derek," Meredith muttered. "How long does it take you-"

"I ran into a friend," Derek shrugged, moving out of the way to reveal Addie.

"Addison?" Meredith gasped.

"Hi Meredith," Addie smiled. "Derek I don't see the-" Meredith stood up. "Woah!"

"Yeah," Meredith laughed uncomfortably.

"Congrats you two," Addie said. Without hesitation she reached out a hugged Meredith. "When are you due?"

"June 30th," Mer answered, placing her hand on her baby bump.

"Do you know what you are having?" Addie questioned.

"A boy," Mer answered.

"Is he your first?" Addie said.

"Well actually-" they were interrupted by Addison's phone going off.

"Crap," she hissed. "I have to go… I… I want to do dinner like Jake said."

"Who's Jake?" Mer asked.

"My boyfriend," Addie said.

"Can we come?" Mer said out of the blue, her eyes wide with excitement. "I miss the hospital already; I need something 'medicalish'."

"Medicalish?" Derek chuckled.

"Shut up?" Mer snapped.

"Sure, why not? That way we can plan out dinner, if that's okay with you two?"

"Absolutely… this is our babymoon, dinner is definitely adult like," Mer answered for Derek.

"Don't you have to get your car?" Derek asked as they followed Addie outside.

"The practice is just right down the street," she informed him. "So what do you two mean with babymoon? You can't necessarily get away from your little guy in there."

"Oh… I forgot, you don't know," Derek chuckled.

"What?" Addie questioned, walking into Oceanside's lobby.

"We-"

"Addison!" Jake called. "Becky's in labor, I've called an ambulance."

"But she's only 29 weeks," she hissed. "Sorry guys, I have to go… um, Jake, plan dinner with Meredith and Derek." Mer and Der shrugged as she disappeared into a room.

"Hi," Jake walked over to them. "Meredith right? I'm Jake…"

"The boyfriend, nice to meet you," Meredith shook his hand.

"Um, congrats," he said, noticing her baby bump.

"Thanks," Derek kissed her cheek. "Um, dinner, Mer and I are free whatever night, we are here till Monday."

"Unless Addison gets stuck at the hospital, we are free tonight. There's an Italian restaurant down the street, meet there 7ish?"

"Sounds good," Mer nodded.

"Cass dinner!" Lexie called from the kitchen. It had been an exhausting day and Lexie had just had a mini food fight with Maeve over her sweet potato puree. Clearly Maeve was having separation anxiety and missed her parents dearly because she was being very difficult this evening. Cass came running into the kitchen and knocked over her bowl of pasta, sending spaghetti sauce flying all over the counter. Lexie sighed and poked her head into the TV room. "Uh Babe? I could use a little help."

"One minute, I just wanna get to half time." Mark had his eyes glued on the basketball game. Lexie sighed.

"You've been watching that for the past hour, I know you just wanna see those cheerleaders." Lexie was trying to make a joke but then when Mark didn't look back she just huffed back into the kitchen. Wiping the sweat from her brow she continued to try to feed a cranky Maeve while papertowelling the entire kitchen to soak up the tomato sauce.

" Lexie?" Cass asked between bites.

"Yeah Cass?"

"You're gonna be a really good Mommy, I can't wait for my baby cousin!" Lexie smiled.

"Thanks Cass, that's sweet. Why don't you see if Uncle Mark wants to come eat with us." Cass went into the TV room and then came back in within a few seconds.

"He's not there. Want me to look upstairs?" Lexie shook her head.

"Watch your sister I'll go look for him." Lexie went to the guest room and found the door closed ajar. She could hear Mark on the phone and crouched down outside.

"Yeah Man, I know I know. Trust me I wanna come too, I can't though. You know Lex, she's really hormonal and she's taking this 'house' game very seriously and if I screw up one more time she's gonna kill me. I know things are gonna change real soon when this baby comes… Lemme know how it all shakes out tonight, okay, bye." Lexie slumped onto the floor with tears in her eyes. She held onto her barely existent bump, gently stroking it. Mark didn't want to be a father, he could barely help out with Cass and Maeve. He was just going to be the fun uncle forever. Her child needs a responsible father; Mark just wasn't ready, for her or a baby. The door opened and Mark nearly tripped over her.

"Jesus! Lex?"

"What are we doing?" Lexie asked sadly.

"Uh, I was on the phone with Avery and I guess now we are outside the door, technically on the threshold."

"Don't be a smartass I mean what are we doing? You don't want this. You don't want any of this."

"Lex, what are you talking about? Is this about before? You heard what I said."

"Yeah I heard what you said but I don't buy it. This is just too much for you."

"What are you talking about? I want this! I want this baby!"

"You've always wanted to compete with Derek your whole life, you're just not like him."

"What's that supposed to mean?" Mark growled.

"It means that you can't handle this! We just moved in together and now we're having a baby! We're not married and you're trapped now. You're Mark freaking Sloan! The fact that I even got you to commit to me was amazing. You're not ready."

"Wow, the fact that you can't see that I'm in this is unbelievable. I've been here the whole time, I've always been here. I was the one who wanted to get married!"

"Yes, and I said no because frankly Mark, I can't trust that you won't freak out and leave us. I can't raise a baby in a broken home, Meredith practically destroyed herself trying to protect Cass when Derek wouldn't support her, and she wasn't even her daughter yet. I won't do this to my child."

"You mean our child! News flash Lex: this isn't about you, it takes two to make a baby and you've counted me out since day one."

"It's just so hard to trust you." Lexie said weakly. "You've left before when it got too hard, I can't raise this child thinking that might happen again. I'm sorry Mark but…"

"No Lexie, you don't get to do this!" Mark growled.

"It's already done," she huffed. "Bye Mark! You can get your things later."

"LEXIE!" he boomed in despair as she went into their room and slammed the door.

"Mark," a voice suddenly whimpered from down the hall. Mark's eyes met a trembling and tear stained Cass.

"Cass," he sighed dejectedly. He took a step towards her but immediately she took off towards the guest room, without another word.

Two days later…

"Remind me again why we are going to dinner with your ex-wife and her current boyfriend on our last day of our babymoon?" Meredith whined.

"Because I plan to get very drunk, so you can take advantage of me," Derek teased and leaned down on the bed where his wife was trying to put her shoes on.

"Like you haven't been taking advantage of my hormones all weekend," she groaned. "And now you are torturing me at the worst possible time."

"We will be late," Derek smirked. "And we have to head out early tomorrow if we want to be able to pick up the girls before Lexie goes into work."

"I wonder how her and Mark are holding up, trying to wrangle in Cass," Meredith giggled.

"Maybe I can hope Maeve is keeping her sane?" Derek said.

"Oh come on Derek, you know it's a matter of time before Maeve is old enough to take part in her schemes as well as probably take the blame for most of them," she smirked and struggled to get to her feet. "Let's go, I need to see my girls as soon as possible."

"What happened to wanting to enjoy the last day of our babymoon," Derek chuckled. Meredith glared at him and threw him his keys. "Just get the car and let's go." Derek kissed her cheek lovingly before holding the door open for her and the couple made their way downstairs to their car to meet Addison and Jake.

"Meredith, Derek, I'm so glad we could do this," Addison greeted kissing both of them on the cheek.

"So are we," Meredith rubbed her stomach. "There is no reason for us not to be friends now that both of us are happy."

"And you two with your first baby on the way," Addie gushed. Meredith and Derek looked at each other. "What is it?"

"Let us wait until we sit to discuss it," Derek said as the two couples chatted mindlessly, Addie rather anxious to be seated so she could know what that look was about. After the waiter took their order Meredith and Derek held hands.

"We weren't sure if you had heard, but we can assume you haven't even from Nancy," Derek said.

"Nancy and I talk about Henry nowadays, you are no longer a topic of discussion Derek," Addie chided. "Now get to the point please."

"Our lives haven't necessarily been smooth sailing, this past Fall, we met someone, two someones actually," Meredith smiled at Derek. "And one was a patient of ours, a little eight year old girl named Cassandra."

"What does this have to do with babies?" Addie asked and Jake smirked.

"Let them finish."

"Cass and her baby sister Maeve did not come from a very happy home, and I could see it," Meredith put it lightly. "And my interference in their lives almost cost me my job, and their lives had I not given up on them."

"Oh god!" Addie gasped.

"This baby will be our third child," Derek put it bluntly.

"You adopted them," Addie gasped.

"Cass got a great deal attached to me, and, I couldn't say no really," Meredith laughed. "And neither could Derek once he knew her, them."

"May I see a picture, oh my god, I can't believe it," Addie shook her head.

"Congratulations are in order then," Jake shook his head at his wife's sudden enthusiasm. Derek pulled a picture out of his wallet.

"Are you sure Cass is not your child Derek," Addie beamed. "She's got your curly hair and eyes, but Meredith's hair, oh they are both so gorgeous!"

"We take it as if she was meant to be ours," Meredith explained.

"When can I meet them," Addie immediately said. "Because if we are to be friends that means that I am allowed to spoil them and this baby as much as I want because I can. And I have several years to make up for with Cass."

"Maeve's first birthday is coming up," Derek shrugged. "Maybe then?"

"Lexie," Cass whined as Maeve started to cry again. Lexie groaned. Single parenting was hard, she was entirely sure how she was going to be able to do it, now that she made her decision that she did not want Mark.

"Cass I'm sorry, it will just be a minute," Lexie sighed as she ran to get the baby.

"But Lexie," Cass grumbled and sat down on the bottom step with a bump. This was supposed to be a fun filled weekend but instead it was miserable.

"Why the long face short stuff?" a new voice said.

"MARK!" Cass gasped and jumped into his arms.

"Good, so you are at least not still upset with me," he mumbled.

"I missed you, you were gone for a day but I still missed you," she said into his neck. "It's been terrible, Maeve's gotten really fussy, I think you're the only one she really took a shine too, Lexie's having a really hard time."

"God I'm an idiot," he sighed.

"What are you doing back? Lexie said you couldn't come back."

"I realized I was an idiot for letting her kick me out," Mark said confidently.

"What in your hand?" she asked.

"A present, for Lexie and the baby," Mark smiled.

"Can I see?" Cass asked. "Lexie's upstairs with Maeve."

"It's just two onesies," he sighed. "One if it's a girl, and one if it's a boy."

"Daddy's Little Girl and Daddy's Little Man," Cass giggled at him. "You are so corny Mark. You're like my dad."

"I'm not that corny," he sighed. "I just want Lexie to know that I have been a fool, for letting her think I do not care. And it's not just me not taking responsibility for my actions. I love her and I love this baby, and I want to be a family, I want to have a family with her. "

"Tell her that," Cass said.

"He already did," Lexie said from the top step, Cass and Mark's head snapped up to her, shocked that they heard their whole conversation.

"Lexie I'm sorry," Mark gulped. "I love you and I love this baby and I can't bear for you to think that I am not in this, because I am. You are not alone, we are in this together." Lexie walked down the steps and met him, touching the stubble on his face.

"You forgot your razor," she said softly. "I was hoping you would come back for it eventually so I could-"

"You were right Lex, I wasn't behaving as a father of this child shoulder," Mark touched her stomach lightly. "And I hope someday you can forgive me and trust me again."

"I never stopped," Lexie gulped. "I'd blame the hormones but it was just me being silly and ditching out like Grey's always do. Besides," she glanced at Cass. "I don't think I can do this single mother thing."

"Oh that's just this little devil," Mark chuckled as Cass let out an indignant cry.

"I resent that," Cass huffed.

"Are you even aware of what resent means?" Mark asked.

"No, but I resent that too," she piped up and Mark and Lexie laughed.

"Lex," he murmured. "I don't want you to ever be unsure of my commitment to you again."

"Mark," Lexie gasped.

"I am in this, I will never leave you, we will raise this child together as a family," he got down on one knee. "Will you do me the honor of becoming my wife?" Tears sprung to Lexie's eyes as he held out a ring. "I didn't tell Cass about this gift."

"Yes of course," Lexie cried. "I will! I do!" He slipped the ring on her finger and he kissed her passionately until Cass coughed.

"You are getting married!" Cass exclaimed, running up to them. "WHEN?"

"Not until after I have the baby I'm afraid," Lexie shook her head. "I'm not going to be a fat cow in my wedding dress."

"Can I be the flower girl?" Cass questioned.

"Well I don't know, by the time I have my wedding you will be ten or almost eleven, and ten is too old to be a flower girl don't you think?" Lexie said with a glance at Mark. She bit her lip as Cass looked crestfallen.

"Oh…"

"Maeve will almost be two, which is the perfect age for a flower girl," Lexie smiled and Cass felt betrayed.

"Yeah, I guess," she mumbled sadly, her good mood gone.

"But you want to know what age ten is perfect to be?" Cass looked up, curious, though she was still angry.

"What?"

"My junior bridesmaid," Lexie's smiled grew ten times wider as Cass's face lit up.

"A bridesmaid," Cass giggled. "For real?"

"Well your Mom will be my maid of honor, and your dad Mark's best man, it's only right to have their oldest daughter be a bridesmaid as well," Lexie explained.

"Oh thank you," Cass exclaimed. "Thank you, thank you, thank you!" Cass hugged her tightly. "That means I get to wear a pretty dress and…" She continued to babble and Mark rolled his eyes, catching Lexie's.

"What have you done Lex, you created a monster," he chuckled.

"It's worth it, if it means I can marry you," Lexie whispered, leaning over Cass who was now hugging Mark, to kiss him lightly on the lips.

I don't know how worth the wait this chapter was really, but I hope you can all forgive me for quitting this story for so long and never explaining myself, I feel terrible but the good news is there are six weeks left of my last semester of my freshman year in college so just imagine how many updates I can get after that!

For all of you who have stuck with us through this long long hiatus, iSeriouslylovegrey's and I would like to thank you so much, I'd give you a present of some kind if I could ;)

Please let us know what you think!

iSeriouslylovegrey's chapter is next (and we promise it will come a lot more swiftly)

And side note: if you have never watched Downton Abbey before, I suggest you do, it is such an amazing show! Especially if you like British accents and good looking people! (I'm talking mostly of Dan Stevens on this account, an actor in the show if you don't watch it) Some people call him the Melancholy McDreamy haha!