Olivia joined Anna for an episode of her Anna Faris Is Unqualified podcast, when talk turned saucy and the guest asked her friend for intimate details about what happened to her vagina after childbirth.

"Mine just got tighter and hotter," Faris joked, but the Magic Mike star was serious and revealed friends had told her horror stories about vaginal birth, explaining one pal had said, "It looks like there's a small vagina on top of your vagina. Basically, they keep saying the phrase 'blown out'..."

Anna, who has a three-year-old son with actor husband Chris Pratt, reassured Olivia and responded, "It does come back."

She then added, "People talk about the idea of a pelvic floor and you really have no idea what they're talking about, until you feel it. It's the muscles that surround your vagina. They throb for, like, weeks."

The celebrity mum then giggled, "We should've been given more holes in general", before telling her friend that she and Pratt were hoping to have more kids: "We both love kids. Chris and I have both dreamed about having a big family, but I didn't love pregnancy... I was just bored. I was uncomfortable at times, and Jack came early. He came two months early, so I'm now in a high-risk pregnancy category, but I would love to (have more kids)."

It's not clear why Olivia was quizzing her pal about childbirth, but she is in a serious romance with American football star Aaron Rodgers.

The actress shot down rumours suggesting she and Rodgers had become engaged in January (16), revealing even her mother thought the news was for real.

"I had no idea that it got as far as it went until I got random emails from aunts and uncles that I haven't spoken to in so long like, 'Can we come to the wedding?'" Olivia said. "(People) were texting me like, 'Congrats, is it true? Is it true?' I was like, 'Did (her new movie) Ride Along (2) get nominated for an Oscar?'"