Here's the last chapter guys. I want to thank Druid Archer, NYC. Always, BoneyCastle237, READINGfancficIsWhyILIVE, zats, sorcier, KMacD, LittleLizzieZentara, basket-case1880, ParisNeverEnded, CastleWriter16, and everyone else who sent out reviews and alerts I got. They really meant a lot and made me happy to post each chapter.

Enjoy!

Castle and Kate sat in the precinct with the children. The past hour and a half, Lanie and Cassie were trying to contain their excitement at seeing their grandparents. For the last ten minutes, Kate noticed the girls glancing at the elevator. She had just returned to her paperwork again when the two girls ran off. Quickly, the detective snapped her head up.

"Girls!" She said going after them. Kate stopped when she saw the children attached to an older couple.

"Hola mijìtas! Como estàs?" The older woman said to Cassie and Lanie as she kissed them on the heads. Beckett smiled a little before saying, "Mr. and Mrs. Sanchez? I'm Detective Kate Beckett." The woman smiled at her before shaking her hand.

"Hello." She said.

"How about we go in here?" Kate said pointing toward her desk. "Castle should be back soon with Corbin." The detective added.

"Thank- you." Mr. Sanchez replied as he and his family walked into the bullpen.

"Hey Kate! I think there's a little guy who wants to see you!" Castle said as he stood close to Corbin as the child toddled into the room.

"Hi sweetie!" Kate said, a grin spreading on her face as the little boy came up to her. "There's someone I want you to see!" Corbin cocked his head to the side as Kate pointed out his grandparents. Mrs. Sanchez smiled at her grandson as the little boy slightly shied away with a smile tugging at his lips. The woman then turned to address the writer and detective.

"Thank- you so much." The woman said, "For everything." The duo smiled.

"It's nothing really." Kate said as she looked over at Castle for a second. The older woman smiled at the couple.

"It means a lot." The man said as he put his arm around his wife's shoulders, "To take care of three kids while doing your job—" The man stopped.

"It was our pleasure." Castle interjected, "Besides, my daughter is older. It was nice to have these two running around." He added looking at Cassie and Lanie who giggled a moment. The woman smiled at the comment remembering what it was like to have her own children running around.

"It never gets old." She told him. Castle nodded in understanding before the adults were quiet.

"Well," Castle said breaking the slight silence, "I guess I'll grab the kids' stuff."

"Are you sure Castle? I could get it—" Kate started. Castle gave her a look that told her it was useless for her to argue.

"Don't do anything too fun without me!" Castle said before walking toward the other room.

"Always trying to act like the hero." Kate said shaking her head at the man's antics.

"They always do. How long have you two been together?" Mrs. Sanchez questioned.

"A little over four years." Kate automatically stated.

"Really? It seemed like longer. Your husband said your daughter was older—" Mrs. Sanchez said.

"We're not married." Kate corrected the woman. Mrs. Sanchez was about to respond when Castle said, "Okay, I got the kids' bags." Mr. Sanchez took them from Castle before good- byes were said. Kate gave Corbin over to his grandmother, but not before kissing him lightly on the cheek. The boy wrapped his arms around Kate for a moment before letting go. The girls had finished hugging Castle and made their way to the detective.

"Bye." The girls chorused before both gave her a tight hug. Before Cassie let go she whispered, "Thank- you Kate." Beckett smiled at the girl before sending her off with her grandparents. A few seconds later, Castle ran after them. Beckett watched her partner have a short conversation with them before going back to her.

Once he came back, writer and detective watched the family enter the elevator. The girls waved at the duo before the doors closed. Castle and Beckett waved back.

"They're really good kids." Kate said still staring at the now closed elevator.

"Yeah, they are." Rick said standing a little behind her.

"I just wish we could see them again. I know it seems selfish, but I hated letting them go." Kate told him. When Rick said nothing in reply, the detective turned to see a small grin coming across his face.

"What?" She asked.

"I told them if they needed anything to call." Castle told her. At the moment, Kate Beckett had an incredible urge to either wrap her partner in a huge hug or plant her partner with a huge kiss. Instead, she smiled at him softly and meaningfully said, "Thank- you Rick."

"Always." He smiled.

Review!

Also, if enough review, I could write an alternate ending? It'll be like the endings in Clue!