Castle draws his fingers up over her thighs, circling behind her kneecaps to where the tender, soft flesh is. He rolls his shoulder downward -- an easy ally-oop! -- and coaxes her ankle up and over it. The muscles in her lower back are more tense than a Senate hearing; Castle slides his palms over her hips, thumbs on either side of her pelvis, just letting her know that he's still there to hang on to her if she wants to fall.