"Not up for trying new adventures?" he replied back quickly, not moving away from that touch. "Not very Starfleet of you." Strange, not an erotic part of the body, the elbow - not a touch for compassion or empathy. Not holding him down or holding him in place. More like the way you'd touch an unruly child to get their attention.

Oh... well, looking back up into Spock's eyes, he certainly had Leonard's attention now. Hesitantly, he raised a hand and dropped it gently on Spock's shoulder.

Two could play the touch game.