This happened to me today, But I was the cashier.

They walk among us

"Beckett!"

Castle rushes out of the elevator with two cups of hot coffee. He's in such a rush to get to Kate's desk he almost collides with a rookie, by passing them with a clumsy twirl to the right and then flops down in his chair next to her desk panting.

Kate just turns towards him with an amused smile and a raise of her eyebrow. She takes her coffee and waits.

"You wont believe what I saw at the coffee shop today!"

"What?" She asks not looking up from the case file in front of her. She'll just humor him.

"Guess."

"Castle, I am not going to guess." She deadpans flicking her hair behind her shoulder and looking at him.

"Just guess." He bounces a little in his seat.

Kate sighs slumping in her chair and grabbing at her coffee. She only has to think for a second. "Your future self who came back to warn you about something?"

"No but that would be so cool!" He exclaims. "I wonder what he'd have to warn me about?" He traisl off in a mumble and a crease in his brow.

"Uh...Your sanity?"

He tilts his head to the side with a slight glare. "No. one more guess."

"What is this rule of only three guesses?" She crosses one arm and tips her coffee to her mouth.

He raises an eyebrow and ushers her to guess.

She rolls her eyes. "All right, an Alien?"

"YES!" He practically shouts jumping with excitement in his chair and almost spilling his coffee all over her desk. She sighs at him and turns away losing interest.

"Come on Castle."

"I am dead serious." He says. And when she turns towards him again she can see that he truly believes he saw an Alien, so she throws him a bone.

"Okay." She puts both hands up in surrender. "What did it look like?"

"He." Castle corrects and then continues. "I was in line at the coffee shop behind this tall guy. He had a large wallet, like a woman's wallet full of credit cards and things. And he was fumbling around with them. Like he didn't know how to use them. Finally he pays with cash, trying to shove all his cards back in, and he says." Castle holds two fingers up in excitement.

Kate hides a smile behind her hand.

"He says, 'sorry I'm trying to get used to all this.' he turns towards me and then says, in all seriousness. 'I've only been on earth for a week." Castle's mouth stays open, eyebrows raised all the way to his hairline. He looks completely adorable waiting for Kate's reaction.

"Castle, he was probably joking around." She leans forward.

His face falls. "But he wasn't!"

"How do you know?" She asks placing her elbow on her desk/

"Beckett. I know people, and I just got this vibe. He was creepy... For one, he hardly had any emotion when he spoke, except for when the cashier asked him how his day was. And he seemed floored to be asked a simple question. AND he had a large head, not round but long." He gestures by bringing a hand over his head.

"So." Kate starts to laugh, she just cannot help it.

"So? Kate! He was clearly an Alien!"

"What does the shape of his head have to do with anything?" She asks, sobering up.

He fixes her with such a look. "Well obviously they have to look like us when they come here." He makes some gestures as if to say they use humans as their hosts.

"What? did you see his Zipper?" She bursts out laughing her voice carrying throughout the bullpen and raising Esposito's interest, and Ryan pokes his head around the door frame of the break room.

"Laugh all you want Beckett." Castle says, leaning back in his chair and turning his attention to his phone. "But they walk among us." He nods his head at himself and taps a few things on his phone before turning it towards Kate.

"That's not real." She says. He's showing her a YouTube video of the UFO in Jerusalem.

"Yes it is." He pulls his phone away from her and pouts in his seat like a small child.

"No it isn't it's an Unidentified flying object."

"A spacecraft!"

"No. it's Unidentified."

"You're mean." He says. Pouting even more and refusing to look at her.

She frowns because she's clearly upset him. "Come on Castle." She gets up from her chair grabbing her coat.

"Where are we going?" He asks looking up at her from his phone.

"To lunch, my treat...maybe we'll see your alien friend at the diner." She smirks.

"Then would you believe me?" He hops up from his chair.

She grins at him. "Sure."


So yes. I did think Alien when I saw this guy. And he was dead serious when he told me he has only been on earth a week, and he was strange even before I thought Alien... Anyway. Thoughts?