AN: You can't imagine the joy I felt when I discovered that the Castle and Private Practice sets were right next to each other! Anywho... Hope you're liking the story!

Addison could fit them into her schedule up to two days later at noon, so by 11:45 they got into the Seaside Wellness waiting room.

While Beckett goes to the receptionist, Castle glances around nervously.

"You look nervous" she says.

"What?" he snaps out of his thoughts. "I'm not nervous"

"Just sayin'" she smirks. "It's all going to be okay" she softly tells him as they sit down.

"I should be the one reassuring you" he holds her hand. "After all, I'm the one who has already been through all of this"

"I'm allowed to be there for you too, you know?" she smiles as she leans on him.

"Katherine Beckett" they hear a young man call out. "Follow me, please"

They follow him into an exam room. "I'm Dell" the blond-haired guy greets them amicably. "Dr Montgomery will he here in a second, I'm just going to take some samples first. Sit down here Miss Beckett" he gestures to an exam table.

"Kate" she sits down on the table a bit uncomfortably as Castle pulls a chair over to her side.

"First a blood test" the guy says as he pulls over a tray of instruments. He takes her blood, and then asks her to give him a urine sample.

"That's all I'm going to need from you, Kate" he smiles.

Right on cue, Addison steps into the room. "Richard, Kate" she greets them. "Follow me to my office"

They enter a very nice office and sit down in front of her desk.

"Alright, now we have to wait for the results, but first I'm going to need a bit of history" she says as she starts filling Beckett's chart. "What are your symptoms?"

"I- umm… I've been lightheaded, I… well, you saw me faint yesterday…" she says thinking back.

"Any nausea? Vomiting?"

"Not really"

"You really can't recall your last period?"

"No…"

They go on with the patient history, measure weight and vital signs until Dell comes in and hands Addison some papers. She goes over them briefly and smiles. "Congratulations you guys, you're having a baby"

Their features change comically in synch, from calm to confusion, to shock to complete and utter happiness. They both get this goofy look on their faces as they look at each other.

"I'll give you two a minute" Addison says as she leaves them alone.

"We're going to have a baby" she has this huge smile on her face mirroring Castle's.

"We are" he kisses her. "We're having a little girl" he says admiringly.

"Or a little boy" she smirks.

"Of course" he kisses her again, but this time it last longer.

"Hey you two love birds" Addison says as she comes in.

They immediately break apart and straighten up a bit.

"If you're done… It's not over yet" she smiles softly.

"Do we get to see the ultrasound now?" Castle says getting excited.

"We're a bit early for that" Addison explains.

"How far along am I?" Beckett asks.

"About 6 weeks. Ultrasounds are usually scheduled after 8 weeks. So you can send me the info of your OB in New York and I can tell them all they need to know"

Right… We're going back to New York… she kind of had forgotten that they are only on vacation and that they- well- she has a job to go back to. Oh, god the job! She has no idea what she's going to do about her job! And Castle! He's going to be so over protective of everything! She is definitely not ready.

She starts hyperventilating and Castle holds her hand. "Kate? Kate, breathe." He tries to sooth her but has no idea of what's going on.

"I'm not ready…" she whispers as she tries to calm down.

90% of the women Addison treats go through this sooner or later so she gets up and gets her a glass of water as she makes sure Kate's okay. She puts the glass in front of Beckett and decides that it would be a good moment to step in and help Castle a bit.

"Kate, you need to relax. You need to take it easy now. For your baby's sake" she says softly. "And Castle's apparently" she smirks glancing at Castle who looks terrified. He's just not used to seeing her that way.

Beckett gets to grips with what's going on and takes a few deep breaths. "Sorry"

"It's completely normal" Addison says calmly as Castle sighs, relieved.

"Still… I freaked him out" she gives him a small smile.

"I cannot wait to see him in the delivery room" Addison retorts now that the mood has lightened up.

"Ha-ha" he says sarcastically.

Beckett squeezes his hand and looks over at him saying thank you. He answers by nodding his head slightly.

"So, let's recap" Addison says getting back to business. "You're 6 weeks pregnant, you are a bit dehydrated so I want you to keep an eye on that for the lightheadedness to subside a bit, and everything else looks great. You'll need to follow up with your OB in New York and well… I wish you both the best" she smiles and gets up.

Castle and Beckett get up too. "Thank you very much, doctor Montgomery" Kate thanks her.

"It's a pity you won't be our doctor. I saw how great you were with Meredith…"

"Let's just hope that this is not as troublesome a pregnancy" the doctor says.

"Of course, of course" Castle answers putting his arm around Beckett.

"When are you guys leaving?"

"In…" he has to think about it. "Two days! The day after tomorrow?" he had completely lost track of time.

"You look surprised" Addison says amusedly.

"We've been having such a good time here" Beckett says.

"So tonight's your last night here?"

They nod.

"Oh, we won't be able to have dinner…" Addison says. "Guess you'll have to come back soon" she smiles.

"Guess we will" Castle answers.

They say their goodbyes and the happy couple leave the Practice and go celebrate… and pack to go back to New York.

AN: Any ideas or comments? Send 'em my way!