Actress Olivia Wilde performed a monologue about her vagina at Glamour magazine's event, These Girls, on Oct. 8. 

She told the ladies in the audience to be in tune with their vaginas so that they know when it's time to leave a relationship. 

"Sometimes your vagina dies," she said, according to Vulture. "Then you know it's time to go. There's no reason to sacrifice your womanhood and femininity for some sort of weird feeling of responsibility to something that may not be right. I feel like far too many women do that." She also added, "[Men] are not allowed to be the only ones thinking with their genitals. We think with our pussies." 

Wilde knows this from personal experience at the end of her first marriage with Italian prince Tao Ruspoli. Wilde divorced Ruspoli in 2011 and said in a TV interview that she suffered from much regret. 

"You don't want to break up with someone, you don't want to end a marriage, especially if you really like the person," Wilde said, according to MSN. "You just know that something's off and so you try to change everything else. The day I knew I had to ask for a divorce was the worst day of my life. ... I had no idea how to be alone."

During her monologue, audience members learned what was "off" about that relationship: her vagina.

"I felt like my vagina died," Wilde confessed to the audience. "Turned off. Lights out ... And you can lie to your relatives at Christmas dinner and tell them everything on the home front is just peachy. But you cannot lie to your vagina." 

Sexual escapes with lots of men left her unfulfilled. But when she meant Jason Sudeikis of "Saturday Night Live," Wilde and her genitals fell "blissfully, hopefully, wildly in love."

The actress was happy to announce, "We have sex like Kenyan marathon runners."