Let Nina Hartley Show You How To Satisfy Your (Bi!) Curiosity!. Adult industry icon Nina Hartley knows good sex! In this installment of her acclaimed How To series, she explores the bisexual desires of women through communication, seduction, and sophisticated sexual techniques. Here, Nina and friends Justine Joli, Andreanna Nicole, and Gia Paloma demonstrate how this once taboo, yet surprisingly popular topic can be handled with honesty, humor, and erot...