All right, kids, this is going to be the last chapter. I thought of having a "goodbye" chapter first between Cadence/Addison/parents, but I didn't see much of a need for it. I'm going to tie up all of the loose ends this way instead. Enjoy, and thank you all so much for reading.

"Anyone home?" Addison called, stepping inside of her Madison Avenue home one Friday after work. She walked into the living room, looking for signs of her family.

After moving back to New York City, Addison had been able to find a job at Columbia, her alma mater, as a professor and researcher. She greatly enjoyed her work. Whenever particularly delicate neonatal procedures came along, Addison was sought after by the area hospitals where she had privileges, but she didn't consistently work the long hours that were typical of a surgeon. She couldn't believe that she was able to have the best of both worlds.

Addison covered her mouth to keep from laughing at the sight of Mark and Andrea on their living room floor. Mark's hair was separated into tiny sections, which Andrea had apparently fastened into place with small bow clips that were made of pink plastic.

"Hi, mommy!" Andrea jumped up and ran over to Addison, throwing her arms around Addison's legs before she could even put her briefcase down.

"Hi, precious!" Addison stooped to Andrea's level and kissed her on the nose. "Have you been playing salon with daddy?"

Andrea bobbed her head up and down emphatically. "Uh huh! Daddy pretty!"

"He's beautiful, baby!" Addison exclaimed, trying to keep from giggling. "Next time, you should get some of my lipstick and—"

"Addison!" Mark warned.

Addison grinned and stood up, ruffling the 3-year-old's hair. Andrea scampered off to look for a new project, giving Addison the chance to remove the clips from Mark's hair.

"As cute as these are, I think the family would be scared." Addison said with a laugh.

"No doubt." Mark snuck a kiss. "How was work?"

"Good." Addison kissed him again. "I missed you, though."

Mark wrapped his arms around her waist and squeezed her. "I missed you too. Dinner will be ready by the time everyone gets here."

Mark had started another practice, with a dermatologist, allowing him to set his own hours and have plenty of time with his family.

Addison grinned and kissed his cheek. "I love you. You're so domesticated."

"I love you too. But don't call me domesticated." Mark feigned annoyance, then went back to the dining room to finish preparing dinner.

Andrea was quickly back at Addison's side. She tugged at Addison's engagement ring, which had been joined by a diamond encrusted wedding ring two months after Andrea was born in a small, outdoor ceremony. Addison had worn a gown of Cadence's design, made of blush chiffon. They'd made the move back to Manhattan the following March.

"Shiny!" Andrea exclaimed, examining the large diamond. Addison just laughed.

Andrea looked similar to Cadence and Addison at that age, but with a few differences – Andrea had dark brown eyes (Addison presumed they were a gift from her father, but never asked), a light smattering of freckles across her noses and cheeks, and her red tendrils were in a mass of curls.

Andrea darted off toward the dining room, determined to see whether the table spread that her father was setting up was more interesting than her mother's ring. Addison sank down into the living room couch, watching Andrea explore the dining room. It was hard for Addison to believe that she had once been so tiny with a heart condition. Preston had easily corrected the heart defect with surgery before they left Seattle, and while Andrea was small for her age, she had met her developmental milestones nicely.

"Andrea, no!" Addison exclaimed as her daughter tried to reach for a bottle of Dom Pérignon that was on the table. "Mark, get her!"

Mark reacted quickly, a seasoned pro well-attuned to Andrea's grabby stage by that point in time.

"Hey, no, Andi! That stuff's for grownups." Mark swept Andrea up and covered her face with kisses, much to her delight. He tucked her under his arm like a football while she kicked and laughed, and he hauled her back over to Addison.

"Just like her mom… Trying to down the champagne." He gently dropped Andrea on the couch next to Addison.

"Won't be downing any tonight." Addison said with a slight smile.

"Mmm, nope." Mark crouched beside her and gave her a soft kiss, smiling against her lips. Andrea covered her eyes at the sight of her parents kissing.

"Or for the next 6 months." Addison grinned.

Andrea took off again down the hall, effectively spoiling their moment. Mark sighed. "You're sure you can keep up with another one?"

Addison shrugged. "I like to leave the chasing to you."

Mark made a face and jogged down the hall to catch Andrea. A few moments later, he returned with her riding on his broad shoulders. She was clutching one of her dolls in one hand, and crushing its plastic feet into the top of Mark's head, and a fistful of his hair in the other for balance. If Mark's scalp was in pain, he didn't show it.

Addison smiled at the sight and felt a pang of guilt for thinking that he would be a terrible father. As it turned out, he was a wonderful dad; he worshipped Andrea and she adored him.

"You spoil her too much, babe." Addison shook her head, but she was still smiling.

Mark reached up and lifted Andrea's foot from his shoulder and extended it towards Addison, looking pointedly at the child-sized portion of Prada leather encasing it in the form of a Mary Jane. "I spoil her?"

Addison's grin turned sheepish. Mark put Andrea back down next to Addison, again, hoping that she might stay put that time.

Andrea thrust her doll into Addison's arms. "Fix hair, mommy? Pease?"

Addison grimaced at the brand new doll's hair, which had already become inexplicably tied into knots. She patiently worked her fingers through the doll's honey blonde curls, while Andrea turned around and looked out the window eagerly, waiting for Cadence, Edmund, and Emily to arrive.

Emily was Edmund's wife of two years. After everything that happened with Cadence, Edmund could no longer ignore Nadine's affairs (which, Addison learned, he had known about all along) and underhandedness. He filed for divorce immediately after they returned to Connecticut, and she'd moved to Florida with one of her affairs; she hadn't spoken to any of them since.

Addison was fond of Emily. She was a second grade teacher who did not come from money and did not care about it. What Addison liked most about Emily was how happy her father was when he was around her.

"Mamamamamamamama!" The string of syllables came loudly from another room in their home.

"Brock's up from his nap." Mark observed.

Addison smiled and stood up, setting the doll (who had mostly normal hair by then) down on the couch by Andrea. "I'll go get him."

She returned a few minutes later with Brock, who looked much like Mark at one year old, crawling quickly after her. Addison smiled and turned around offering him her hand. She helped him to his feet and he walked for a few steps before falling back on his bottom. His lower lip quivered and he stared up at Addison.

"Awww, you're okay, Brocky!" Addison got down on the floor beside him and pushed his shirt up. She blew raspberries on his stomach, which made him giggle, the small fall quickly forgotten.

The front door was pushed open and Addison heard voices in the foyer. She stood up and walked into the other room to greet her family.

"Cay!" Andrea ran directly to Cadence and held her arms up in the air. "Hi, Cay!"

Cadence smiled and swept Andrea up into an embrace, then tossed her in the air. Andrea loved her Aunt Cadence dearly; she was her favorite relative besides her parents. Addison and Mark had consulted a psychologist about when to tell Andrea that she was adopted. He had suggested that they wait until she was around 5, explaining that she wouldn't have the cognitive ability to process what it meant before then.

"Hi, John!" Andrea waved at him over Cadence's shoulder.

Cadence was in her sophomore year at the Rhode Island School of Design, and seeing John, a senior computer science major at nearby Brown University. Addison and Mark had encouraged Cadence to apply to colleges in New York, but she had decided to go further away, wanting Addison and Mark to form their parental bond with Andrea, and thinking that it might be easier that way. John knew that Cadence was Andrea's birth mother, and was highly supportive of her.

Cadence passed Andrea to Edmund, who was delighted to see his granddaughter. He had reduced his work schedule significantly since his grandchildren were born, and since marrying Emily. He spent a lot of time with Cadence, Addison, Emily, and the kids. Addison decided that he had probably worked so much before not to make money, but to avoid Nadine. He planned to retire that summer.

When Edmund moved out of the way, Addison saw an unexpected figure behind him.

"Brad!" Addison exclaimed, surprised. She hadn't known that her brother was coming. "What are you doing here?"

"Not happy to see me?" Brad frowned and Addison pulled him into a hug.

"Of course I am, I thought you were in Australia!" Addison said.

Brad shrugged. "I hadn't been to the States in 5 years. I decided it was time to visit." Brad stepped to the side and allowed a tall, thin man to follow him inside. "This is my boyfriend, Travis."

"It's wonderful to meet you, Travis." Addison shook his hand warmly.

"All right, so that's my niece…" Brad looked at Andrea. "Now what about my brother-in-law and my nephew?"

Addison pointed toward the direction of the living room and Brad went in to introduce himself, Travis following closely behind him. Addison hugged Cadence, Edmund, and Emily, and then they all moved into the living room, which was adjacent to the dining room.

"Nice digs, sis." Brad nodded his approval. He caught a glimpse of the Dom Pérignon out of the corner of his eye. "Champagne? Ooo la la! What are we celebrating?"

Addison and Mark gave each other side glances.

"Well…" Addison began.

"Oh my God!" Cadence squealed. She jumped up and almost knocked her sister over with a hug. "You're going to have another baby! Aren't you?!"

"Yes." Addison glowed with happiness. "Yes, we are!"

Suddenly, Addison was swarmed with hugs and congratulations from her family members. When the excitement finally died down, Mark cleared his throat.

"Who wants food?" Mark asked.

Everyone began talking at once – all answers that suggested that they did, in fact, want food. Mark gestured toward the dining room and everyone headed in there, taking their seats for the meal and leaving Addison and Mark alone in the living room.

"So…" Mark laced his fingers through hers and pulled her to him. "They're happy about the baby."

"Of course they are." Addison smiled.

"We just keep popping them out, huh?" Mark chuckled.

"We?" Addison arched a brow. "I think I'm the one doing the popping here."

Mark placed his hand on Addison's stomach with a smile. "Hey Carissa… Or Christopher. Your crazy ass family loves you already."

Addison laughed. "I can't believe we've already named the baby."

Mark shrugged. "Better than 'it' or some stupid nickname."

Addison nodded her agreement. "This is true." She paused for a moment, then smiled up at him. "Thank you."

Mark was puzzled. "For the sperm? Well, you're welcome, but you definitely had a part in getting that..."

Addison shook her head. "No… For this. For giving me a family and a home… For giving me everything that I've always wanted. I just wish we would have figured all of this out sooner. I love you."

Mark just smiled and kissed her. "I love you too. You were worth the wait. We were worth the wait."

I don't think Prada makes shoes for kids. But hey, we'll call it creative license.

I couldn't resist having them live on Madison Ave.

Did anyone notice that I named siblings alphabetically? Addison, Bradford, Cadence… Then Andrea, Brock, Carissa/Christopher… I'm not sure why I did it, but I did do it on purpose, lol.

So, there you have it. The end. Everyone is happy and fertile and yay yay yay the end! I like my endings happy and my Maddison together. Because that's how I roll (unlike Shonda).

I am currently formulating an idea for a med school era Addison/Derek/Mark fic… I dunno if it's going to be Maddison or Addek, but stay tuned. ;)

Reviews make my day. :)