In elegant lingerie and heels, the star of “penetrating from behind” performs a slow striptease on a grand piano. Each piece falls away until she’s gloriously naked, climbing atop the polished surface. She spreads wide, inserting a string of anal beads while rubbing her clit in tight circles. “penetrating from behind” alternates between her face contorted in pleasure and the beads disappearing one by one. When she pulls them out slowly, her orgasm hits like thunder—squirting across the keys in powerful jets. “penetrating from behind” ends with her licking the mess from her fingers, utterly satisfied.