A/N: Okay, I am really sorry that I haven't updated this fic in a/b, two weeks. But seeing as I am now on xmas hols, I plan to update more frequently, maybe every other day? How dows that sound to people? The story doesn't end as quick then. I can't remember if this chapter was beta-ed or not so if there are mistakes, I apologize.

Enjoy!

"Uh mom?" Derek dubiously entered the lounge, where his mom was watching a programme on the television, "Can I talk to you about something?"

"Sure." Kathryn turned and smiled at her son.

Derek shut the door behind him and sat opposite Kathryn. "Addison's pregnant," He started, taking a deep breath. "The baby isn't mine, but I've agreed to be a father to it."

Kathryn just looked at him shocked. "She's pregnant? And you're going to be a father to it even thought you're not the father?" She questioned.

Derek nodded. "Yes."

"Wow…"

"I said I'd be there for her, no matter what."

Kathryn nodded. "Have you slept with her?"

"No, no we're taking it slow."

"Okay, how far along is she?"

"Four months."

"When's she due?"

"January fourth."

"So it'll be a New Year baby then." Kathryn smiled.

Derek looked amused. "Everyone says that."

"That's because it's true." She smiled. "Will you want a nursery here as well?"

"I don't know, we haven't really made plans for the nursery yet."

"You better start soon, otherwise the baby will be here before you know it."

"I know."

"Are you going to find out the sex?"

"No, we're going to wait until it's born."

Kathryn smiled. "We did that with you. Actually I still have baby stuff here if Addison wants it."

A grin lit up his face. "That would be great, thanks!"

"At least it'll be going to good use."

"Yeah." A thought suddenly crossed Derek's mind, and he looked up to his mom, a shy smile on his face. "Hey, if I'm going to be this child's father, you'll be it's grandmother."

"I will be." She smiled widely. "My first grandchild."

Derek chuckled to himself, "Yeah. I bet you didn't expect one to come so soon, huh?"

"No I didn't, I would rather wait a few more years."

"Well, you have a couple of months to get used to the idea."

"I do." Kathryn smiled. "Is she showing yet?"

"A little bit."

"I bet she's glowing."

"Yeah, she is." Derek smiled.

"Bring her over for dinner tomorrow."

"Okay," Derek grinned widely, looking forward to the next night.

Kathryn smiled as well. "When are you going to tell your sisters?"

"I don't know yet, soon I guess."

"Okay, you and Addison could tell them tomorrow night."

"Yeah, will do."

Kathryn smiled and stood up. "Better get dinner ready then."

"Need any help?" Derek offered, standing.

"Sure, I always welcome help, and you'll need the practice." Derek pursed his lips, trying not to smile as he shook his head with amusement. "Oh I'm sure you'll be cooking for Addison and the baby in no time."

"Yeah, I guess. Addison sure as hell can't cook."

"Bring her over and I'll show her how to." Kathryn smiled, none of her daughters wanted to learn how to cook.

"I'm sure she'd like that, but make sure your insurance covers the whole house," Derek smirked.

"Never mock a woman and her cooking Der."

"Well it's not technically cooking... more like an inedible mess. Did I tell you she burnt microwave popcorn?"

"Give her a break, she's pregnant."

"She couldn't cook before she was pregnant."

"I'll teach her how to then." Kathryn opened the cupboards.

"Okay then." Kathryn smiled at him as they began to prepare dinner. Derek opened the fridge, bringing out some apple juice for him to drink, watching his mom.

"So it's serious between you two then?"

"Yeah, it is."

"Good." She smiled. "I'm very proud of you for what you're doing." He smiled, a blush creeping up his neck. "You don't have to be embarrassed about it."

"I'm not."

"Good." She smiled. Derek smiled back, downing the apple juice. "So we've got two new members to the family."

"Who?"

"Addison and the baby." Kathryn rolled her eyes.

"Oh yeah," Derek grinned sheepishly, cursing himself for forgetting.

She smiled at him. "You won't be able to forget them soon."

"I'll never forget them."

"I know, hand me that pan please." Derek handed her the pan. "Have you got any names picked out yet?"

"Addison likes Jessica."

"That's a nice name, what names do you like?"

"I don't know yet."

"What about if it's a boy?"

"We haven't got that far yet," Derek grinned sheepishly.

"You haven't gotten very have you?" Kathryn smirked.

"Nope."

"Well you do have five months to sort it all out."

"Yeah, plenty of time."

"It'll go fast." Kathryn warned. "Before you know it, you'll have a little baby to care for."

"I know, but then, isn't it fast as they grow up?"

"Yes." She gave a sad smile. "It still seems like yesterday you were born."

Derek rolled his eyes. "So you're telling me that the day after the baby is born, he'll suddenly be sixteen?"

"No, but the time will go fast, and before you know it, the baby will be all grown up."

"No more diapers," Derek joked.

"No." She laughed. "No more diapers and night feeds, although the crying through the nights won't stop."

"What is that supposed to mean?"

"No matter what age, the child will wake up during the night wanting you or Addison, because of a nightmare, or just because they're upset."

Derek smiled lightly. "I better not have done that."

"You wouldn't have." She smiled.

"Good."

"You really want this baby with Addison don't you?" Kathryn looked at him.

"Yeah, I really do."

She smiled widely. "Good." He smiled, leaning against the counter. Ten minutes later and dinner was ready. Derek carried the plates to the table here all four girls were already sat down. Derek joined them, sitting in his usual seat next to Nancy. Kathryn smiled at all of her kids as she sat down. Derek waited until his mom was sat down, before serving out the food to his sisters. Chatter was started between the siblings. Derek served his mum before heaping piles of food onto his plate. "Not taking too much then are we Der?" Kathryn raised her eyebrows.

"I'm eating," Derek muffled between bites. Kathryn shook her head amused before she began eating as well. Derek shovelled forkfuls into his mouth, ignoring the conversations beside him.

"Derek slow down."

"Why?"

"You'll end up with indigestion."

"So? It'll pass."

"Slow down." Kathryn warned.

"Fine," Derek ate at the same speed, but with less food on his fork. Kathryn sighed and shook her head at her son. Derek smirked as he ate, noticing his mom's expression.

"Mom can we watch a film tonight?" Kathleen smiled at their mom.

Derek glanced over. "Please, no chick flicks."

"P.S I Love You pleaseeeeeeeeeeee." Derek groaned, hitting the table with his head.

Kathryn smirked. "Sure girls."

"Mom!"

"Yes?" Kathryn smiled sweetly at him.

Derek narrowed his eyes, glaring at his mom. "You know I don't do chick flicks."

"I'm sure you can deal with it for one night."

Derek rolled his eyes. "One night? I've had to deal with chick flicks my whole life."

"And they've had to deal with your horror films."

"Please, they barely watch them. They just hid behind the cushions."

"Well then you can hide behind a cushion." Derek rolled his eyes again, picking up his fork. Kathryn just smiled and finished eating as well. Derek finished his food and sat back in his chair. "Derek, your turn to clean up."

"Why my turn?"

"Because it is, or you can go and put the DVD in ready and start watching." Derek grumbled, picking up everyone's plates. Kathryn smirked and the girls walked into the lounge.

"Unbelievable," Derek muttered, taking the plates into the kitchen. The girls all settled themselves ready to watch the film. Derek washed the plates and set them on the draining board before joining his family. Kathryn smiled at him as he sat down. He watched the movie, wishing he could be with Addison. The four girls were really interested in the film and by half way through no one was paying any attention to him, meaning he could sneak out and phone Addison. Slowly he got up from the chair and walked into the hallway, pulling out his phone and dialling Addison's number.

"Hello?"

"Hey Addi." He smiled even though she couldn't see him.

"Hey Der."

"How are you feeling?" He sat down on the stairs.

"I'm okay thanks, you?"

"Yeah, I'm good, I was just made to watch PS. I Love You though."

"I love that film!"

Derek chuckled. "I knew you were going to say that."

"But the book is awesome though, I love Cecilia Ahern."

"Erm who?"

"Cecilia Ahern, she's a author, her books are just amazing."

"Oh, okay then. I'll erm try and read her books some time." He could hear Addison laugh on the other end. "What?"

"You read?"

"Yes…well…kind of…"

"You don't have to read her books, just know she's awesome."

"Okay then, oh by the way, mom had invited you round for dinner tomorrow night, I told her about the baby."

"What did she say?"

"She seems happy about it, she can't wait to have a grandchild, but she knows it's not my baby, but she's fine with it, but we should tell my sisters it's my baby, to stop confusion, is that okay?"

"Yeah, that's fine…my dad wants to tell my mom."

"And you don't want to?"

"I'm not sure, I don't know how she'll react, she's coming over tomorrow, will you be here when I tell her?"

"Of course, if that's what you want?"

"It is."

"Derek?! Where are you?!" Was heard from the living room.

"I better go, I'll come round in the morning, we can spend the day together, bye."

"Bye." With that they hung up the phone and Derek went back in to watch the film again.