When Kris woke up the next morning, she lay on her back staring up at the ceiling. Today was the day that her sister would finally marry Richard Castle. Kris remembered the first day her sister met the writer, and how much she claimed to hate him. She knew her sister had always loved the writer's work, especially after their mother's murder. It was one of the few things that kept Kate going back then. She knew Kate was excited to be around the writer every day, even if Kate would never admit it out loud.
Kris liked Castle from the moment they met and they quickly established a brother/sister bond from the get go. They always gave each other a hard time but as the years went on, they both became very protective of the other. Castle had saved Kris from many potentially hazardous dates with his nit picking. Kris was always sure that her sister and the writer would end up together and was extremely relieved when that day finally came.
Now, here she was about to crawl out of bed to get ready for their wedding. She would never admit it, but Kris was bursting with pride on the inside for her sister. She always looked up to Kate growing up, especially when Kate became a cop. Kris knew that she wanted to do something with her life to help people, like Kate had. To help bring justice to victims and their families, something that took far too long for her and Kate to get for their mother.
Getting out of bed, Kris pulled on an Iron Man hoodie and headed out of her room to go find Kate. Knowing her sister, Kris knew that Kate had most likely been up for hours already. When Kris entered the kitchen downstairs, she wasn't surprised to find Kate already there drinking a cup of coffee.
"You're up early." Kate said when she caught sight of her sister.
"Yeah, well I didn't want to be rushing to get ready later when all the chaos breaks loose." Kris shrugged as she grabbed a cup from the cabinet and poured her own coffee.
"Good idea. You have no idea how long it takes Lanie to get ready." Kate smirked.
"So, you nervous?" Kris eyed her sister as she added sugar and creamer to her cup.
"Ya know, I thought I would be. You know how much I hate being the center of attention." Kate smiled. "But I'm not the least bit nervous or scared. Marrying Castle... it feels like coming home. Like the most natural thing in the world."
"You're gonna give me a cavity with all that sweet bullshit." Kris laughed.
"You'll find out what I mean someday." Kate shrugged at her sister.
"Yeah, I highly doubt that." Kris said as she sipped her coffee.
"You know I always said the same thing but here we are." Kate smirked.
"That was just a fluke. One time thing." Kris smirked back.
"So, you really want my apartment?" Kate said as she refilled her empty coffee cup.
"Hell yes!" Kris blurted loudly. "That place is freaking amazing and ten times bigger than that shoe box I live in."
"Well good because Castle bought it so now it's yours, rent free." Kate grinned when her sister's eyes widened to the size of saucers.
"Are you freaking kidding?" Kris just stared.
"No, I'm serious." Kate laughed. "We both knew that it was pointless to give it up to someone else when you could have it."
"Holy shitballs." Kris whispered. "You guys are the best. Like ever."
Kris jumped up from her seat at the bar and crushed Kate into a hug. The two sisters held each other in silence for a few moments, before Kris finally released her older sister.
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Beckett's Sister: A Castle AU Fanfiction
FanficAn AU story where Kate Beckett has a younger sister.