In the hush of the night, a secret symphony unfolds. "Twitching" is the rhythm, the pulse of her desire. Her body moves to the unheard music, her hands exploring, caressing, coaxing. She's a maestro, her instrument the most intimate of all, playing a solo only she can hear. The crescendo builds, her body arches, and with a final, shuddering twitch, she finds her release, leaving her panting, satisfied, and alone in her private concert.