Castle had just gone into the kitchen to make their morning coffee when Beckett cracked the door open to peek through and make sure he was gone. Quickly and ever so quietly, Beckett tiptoed out of the bathroom to her husband's dresser. She opened the second drawer and grabbed all of his undershirts, carrying them back to the bathroom with her.
By the time he came back to their room to place her coffee mug on the bathroom counter, she had stashed the shirts under the sink and was applying her mascara as if nothing had happened.
"Thanks, babe," she said casually as he made to brush his teeth.
"Welcome," he mumbled around his toothbrush. Once she was done with her makeup, she started in on her hair, plugging in her curling iron, taking a long drag of her coffee while it heated up.
When Castle was finished brushing his teeth, he did his own hair while Beckett watched, still drinking her coffee until her iron beeped and she took her hair down from the top of her head. Castle smiled at her and placed a hand at her lower back before heading back toward the bedroom to get dressed.
She tried so very hard to contain her smile at what she knew was coming, but she failed miserably as soon as she heard his voice.
"Hey, honey," he inquired from the next room, "do you know where all my undershirts have gone? I swear there were like 15 in here yesterday."
Beckett giggled for just a second before grabbing a shirt from the other side of the cabinet below the sink and made her way out to him, only one strand of hair curled, bathrobe tied loosely around her waist.
She tossed the shirt on the bed behind him and said, "There you go." He turned around a smiled at her. "It was sitting on the counter. I laid it out for you last night because I saw that your others were dirty or something. Sorry."
"Oh," he said. She could see the confusion in his eyes. "I could have sworn there were some in the drawer yesterday, and I didn't see this one when I was in the bathroom." He trailed off and Beckett shrugged at him, turning to finish her hair, the grin spreading across her face too persistent to resist in the privacy of the bathroom.
She knew she had a few minutes to finish her hair while he picked out his own outfit for the day. She tried not to let her excitement get the best of her while she had a very hot curling iron near her face, but she couldn't help it. Her palms were beginning to sweat ever so slightly, she was beginning to shake just a little, and her heart was pounding in her chest, nervous butterflies fluttering all around.
Studiously, she continued curling her hair until she heard her husband's voice.
"Kate?" He sounded confused and suspicious.
Trying desperately not to squeal with excitement, she took a deep breath and replied, "Yeah?"
"Katherine Beckett, come out here right now and explain yourself!"
Beckett walked out of the bathroom, half her hair still uncurled, smiling hugely at her husband. He turned the shirt around so she could see what she already knew was printed on it. "Kate, what is this?"
"Well, dear," she said, trying and failing to keep the excitement out of her voice, "that is an undershirt. They go. . .under your shirts." She giggled.
He looked completely flustered. "I understand that! But this is not just any undershirt, you see. WHAT DOES IT SAY?" he almost shouted at her.
Stepping closer to him, she said, "Well, Rick, it says 'I Can't Keep Calm, I'm Having a Baby!'"
Nodding, Rick said, with wide eyes, "And why does it say that, Kate?"
"Well. . ." she trailed off, looking down at the shirt. She took the shirt from him and laid it back down on the bed. Taking Castle's hands and looking him in the eyes, she whispered, "I'm pregnant."