Michael Douglas’ new memoir has finally revealed the identity of the Basic Instinct co-star he secretly dated while still married. The actress was photographed in Los Angeles with her husband on the same day the book exposed their decades-old romance.The 82-year-old actor has just released his memoir, One Helluva Ride, and it is proving to be every bit as revealing as its title suggests. Among the stories Douglas chose to revisit is a romance that began while he was making one of the most talked-about erotic thrillers of the 1990s.Directed by Paul Verhoeven, Basic Instinct centered on homicide detective Nick Curran, played by Douglas, as he investigated a murder involving crime novelist Catherine Tramell, played by Sharon Stone.Stone’s performance opposite Douglas generated enormous attention, and the pair’s charged scenes fueled years of speculation that their chemistry extended beyond the screen. But according to Douglas’ memoir, the public was looking in the wrong direction.

The actor wrote that people were so focused on the possibility of something happening between him and Stone that they overlooked the real relationship unfolding elsewhere in the cast. At the time, Douglas was married to Diandra Luker, although he said the marriage was already deeply troubled and that the pair had separated and were living separate lives.He Says He Fell Hard — But Kept It HiddenDouglas recalled developing a close connection with another actress while the movie was being filmed in San Francisco. The relationship was deliberately kept away from the rest of the cast and crew, with Douglas saying the two of them “took great pains to hide” what was happening.He described spending hours together away from the set, talking, getting to know each other and enjoying one another’s company. The age difference was considerable. Douglas was nearly 20 years older than the actress, who was making her film debut in Basic Instinct.