Martina Navratilova's wife, Julia Lemigova, recently claimed she had slept with Adriana de Moura, her castmate on The Real Housewives of Miami. She also said her relationship with Navratilova at the time was strained. Over the past few weeks, controversy has followed Lemigova over her RHOM appearances and her friendship with Adriana. Their bond has taken a hit. Back in April, Lemigova said she had been warned to stay away from certain people, but she resisted. However, she said then that she saw the truth more clearly, seemingly referring to her strained relationship with Adriana. During the first part of the RHOM reunion on Thursday, Adriana accused Lemigova of moving to the 'dark side' after her new friendships."I feel like when [Julia] started to be friends with Alexia [Nepola], I was fine with it... And Alexia wasn't instigating Julia, but then Marysol [Patton] got in the picture, Julia transformed herself," Adriana said (via PEOPLE).Lemigova then shocked her co-stars with her response."I would like to say something that I think would bring clarity hopefully, why we are where we are," she stated. "In the Hamptons, Adriana and I slept together."When the 53-year-old former model was asked by host Andy Cohen about her marriage to Navratilova, she said:"Our marriage was not great."Backstage, Lemigova told the host that she and Adriana had also "fooled around" at a Versace mansion. Adriana responded by accusing Lemigova of "trying to seduce" everyone and cheating on her wife.Adriana de Moura opens up about how she helped Martina Navratilova and Julia Lemigova adopt sonsMartina Navratilova and Julia Lemigova at the 2025 US Open - Source: GettyMartina Navratilova and Julia Lemigova have been together for over a decade, with their love story dating back long before Julia joined The Real Housewives of Miami. Navratilova famously proposed to the former Miss USSR during the 2014 US Open.They recently celebrated a new chapter by welcoming children into their lives through adoption.During the RHOM reunion, the topic of Lemigova's family life came up in a conversation with host Andy Cohen. When Cohen asked Lemigova if Adriana de Moura was ever considered as a potential godmother, she firmly answered:"No, she was not."The response appeared to strike a nerve."That's like the deepest dagger in my heart," Adriana said.Referring to the character letters she wrote to help the couple, Adriana added:"When they were trying and they needed somebody to vouch for them, I did it, not once but twice."It is unclear if Lemigova's statement about sleeping with Adriana was true. Martina Navratilova is yet to comment on the matter.