Prompt by fialka62
Disclaimer: Castle belongs to ABC.
Shoelace
"Is this some kind of bondage gone bad thing, or did you lose a bet?"
"Very funny." He struggles a bit more against the interrogation room chair that he's tied into. "It's research. I needed to know how much time Nikki would need to free herself, but Esposito made these knots so small and tight that they're impossible."
"Oh, I don't know about that." She manages to free him within a minute.
"Wow," he says, rubbing his wrists, "you've got amazing manual dexterity."
She shakes her head and smiles. He really has no idea. Someday, she promises herself. Someday soon.