Billie Jean King &
Marilyn Barnett
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From the outlines site:
Seven years after marrying Larry King (not the talk show host) in 1965, Billie Jean King began a relationship with Marilyn Barnett, a Beverly Hills hairdresser. Barnett even moved into the Kings' Malibu house, and Barnett was at Billie Jean's side as her "secretary" when she defeated Bobby Riggs in the much-hyped "Battle of the Sexes" at the Houston Astrodome. The women were not public about their relationship, and the tennis star gained a reputation as a "women's libber"-but she was relatively safe from suspicion as a married woman.