Disclaimer: I don't own it, just like it.

Thanks for all of the reviews! The idea that Kaitlyn was pregnant was a good idea! I didn't think about that. If I didn't have a lot of the story outlined already, I might have gone there. I didn't mean for the last chapter to be a cliff hanger. She just needed a reason to see Addison. I was thinking her probably had something to do more with a period issue that she wouldn't tell her father. Thanks for reading!

A few months later, by July, Derek and Addison had repaired their relationships with Kaitlyn. Kaitlyn went between Derek, Addison, and Mark all the time. She had things at each of their houses. She just spent time with whoever was free. She was still working on her relationship with her father. He needed to work on his parenting skills. Derek and Mark were quickly becoming good friends again. Derek and Addison were friendly enough for Kaitlyn. Addison and Mark fought a lot. Mostly about his parenting skills. But when they weren't fighting, they were happy to be together.

Derek, Mark, Kaitlyn and Addison were all sitting on Mark's patio on the summer afternoon. Mark put three cans of pepsi on the table.

"Who wants to see if who can drink the can of soda the fastest?" Derek was up to the challenge. He was happy to have his friend back to do all kind of guy stuff. Including stuff like this, which Addison thought was stupid.

"You can't beat me." Kaitlyn enjoyed playing games with them. She was so happy that they were all together. She had been wanting this for a long time.

"Neither of you can beat me."

"You're little."

"And inexperienced." Mark put a can in front of each of them.

"Open your cans." Three cans clicked and then fizzed. "Addison." As childish as she thought it was, she was also glad they were back to how they used to be so she humored them.

"Get ready, get set, go." They started chugging the soda. After a minute, Kaitlyn slammed the can down.

"Done." The guys finished.

"How did your daughter beat us?"

"We taught her everything she knows." They were both proud even though they lost. Kaitlyn started trying to swallow air and rubbed her chest.

"What's wrong?" Addison was concerned.

"I really need to burp." Addison started patting Kaitlyn's back.

"She's not a baby." Kaitlyn burped.

"Much better."

"Well, it worked." Derek stood up.

"Let's get the hamburgers started."

"I'm going to jump in the pool." Kaitlyn was all ready. She took off her cover up and purposefully made a big splash to try to get them wet.

"Didn't work." Derek and Mark started cooking. Addison drank lemonade and talked to Kaitlyn. When the food was ready, Kaitlyn got out and wrapped up in a towel.

"When's Meredith getting here?" Mark asked Derek as he put food on the table.

"She should be here in a few minutes." Kaitlyn walked over to them.

"I've made a decision." Addison laughed.

"What have you decided?"

"I've decided we are dropping the whole aunt and uncle thing. From now on, you are Addie and Derek. Or Addison if you are in trouble, or Addison Forbes if you're really in trouble or…" Derek cut her off.

"I think she gets it."

"Okay Derek Michael Shepherd." Addison laughed.

"Okay Kaitlyn Margaret Sloan." Kaitlyn dropped her towel and walked over to him.

"Just for that you get a hug." She hugged him and he couldn't go anywhere because he was sitting in a chair and she had him trapped. She got spots of his shirt wet. She stepped back. He stood up.

"You're going to pay for that." Before she could run, he grabbed her arms and picked her up.

"Be careful." Addison was the voice of reason in the group. Kaitlyn was laughing and screaming.

"No Derek, no!" He threw her in the pool. Kaitlyn climbed out with her lip stuck out, pouting, but she couldn't help but to smile. Derek picked up her towel and wrapped it around her as a peace offering.

Later Addison was helping Mark clean up.

"You've been doing a much better job with the parenting thing."

"Addison, are you ever going to leave me alone about that?"

"I just complimented you. Stop complaining. And no, I will never stop standing up for you daughter. She needs you."

"And she has me."

"I know. I was saying that I'm happy you are being a better father."

"Thank you."

"You're welcome." They were looking out of the window.

"So what do you think of those two?"

"Meredith and Derek?"

"Yes."

"I think they're cute. I mean she's a little young for him. But I think they could make it. I just hope for Derek that the next time he gets married, it's forever."

"You know you can never know how long a relationship will last. Look at you and Derek. We all thought you were going to be Addison and Derek forever."

"Yeah, well things change."

"Should we go join the party?"

"I guess if she's going to be around for a while, we should get to know her pretty well."

"It looks like Kaitlyn's working on that." Kaitlyn sat in the chair next to Meredith.

"She better be behaving."

"My daughter misbehave?" He smiled. Addison gave him a look.

"Your daughter can be manipulative."

"I am aware." They went outside. They could hear Kaitlyn telling Meredith stories about Addison and Derek from New York. Derek looked uncomfortable.

"Kaitlyn. Come here." She looked up like she got caught and marched over to Addison.

"What?"

"You are supposed to be respectful to the adults in your life. How many times do I have to tell you to be nice to Meredith. She is genuinely trying to be nice to you. She doesn't need to hear about me and Derek and you are making Derek uncomfortable telling her things like that."

"Okay, okay. But she's not right for him you know."

"That is not for you to decide. Derek will chose who he wants to be with. Now go back over there and be nice."

"I want him to be with you." She walked away leaving Addison a little sad. Sometimes she wanted that too.

A few days later…Kaitlyn knocked on the door of Addison's office.

"Come in."

"Aunt Addie?" Addison looked up from her work.

"Yes?"

"Can you help me with school papers? It's kind of a mom thing, or at least not my dad thing." Addison smiled.

"Sure." She held her hand out for them. Kaitlyn gave her the envelope of papers. Addison opened them and looked at them. "I can fill out most of this. Do you want me to do the physical?"

"Sure."

"I have a c-section in twenty minutes so I can't do this now, but how about you meet me here in an hour?"

"Okay."

"I may be late if anything happens."

"I know the drill." Addison smiled and stood up.

"I have to go change and all, but you can hang out in here if you want."

Less than an hour later….

Addison walked back into her office. Kaitlyn was reading.

"That was quick."

"C-sections don't take long when everything goes smoothly. You ready?"

"Yup."

"Let's move to an exam room and we can find your dad."

"Do we have to get my dad?"

"Only if you want him there." Addison picked up the papers Kaitlyn handed her earlier and a few other papers.

"Nope."

"Okay. That's fine. Is there a reason you don't want him there?"

"No. With him, it might not be a pleasant experience for all of us." They walked out of the office.

"I had lunch with Meredith."

"Wow. I hope you were nice."

"I was. We just talked about me."

"Oh you love that." Kaitlyn glared at her. "You do." Addison smiled.

Sorry for the short chapter. I was trying to do something short and fun, but ended up not feeling so creative after having my wisdom teeth out. The next one will be up soon with some surprises