As a regular cast member of That 70’s Show, Laura Prepon has repeatedly said she wasn’t surprised when co-stars Ashton Kutcher and Mila Kunis ended up dating one another eight years after the show ended.

And now that Mila, 30, is due to give birth at the end of the summer, Prepon is calling it an 'awesome' development.

'It's going to be great' when the little one arrives,' gushed the 34-year-old, now one of the stars of the critically acclaimed Orange Is the New Black star.

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Proud of her pals! Laura Prepon called Mila Kunis and Ashton Kutcher's impending parenthood 'amazing' on June 19 at the Critic's Choice Awards in Beverly Hills

Prepon talked about the baby news to US Weekly while walking the red carpet at Critics' Choice Television Awards last Thursday - where OITNB picked up several awards.

The raven-haired actress is often asked about Mila and Ashton's relationship - they hooked up in 2012 after Kutcher ended his long-term relationship with actress Demi Moore - since she was with them on the set of That 70's Show since the beginning.

'We grew up together, you know,' she said May 3 at the 25th Annual GLAAD Media Awards in NYC.

She added their relationship 'makes sense.'

Kunis, 30, who played the love interest of Kutcher's character Michael Kelso on the show, began filming the smash when she was just 14 years old. Kutcher, 36, was 20 at the time.

The actress previously revealed she is still very close to all of her former co-stars and would love to be a bridesmaid at Ashton and Mila's upcoming wedding.

She said: 'Of course I will [be there]. Are you kidding? All of us are going to be right up there on the altar.'

Prepon isn't the only '70s Show alum who has expressed support of the duo. 'That's the thing about the cast of the show. We're best friends, everyone,' Wilmer Valderrama has said.

Mila, who went on to huge fame when starring in the ballet film Black Swan, is reportedly due in August.

She and Kutcher, who took over star duties last year on Two and a Half Men, are said to be expecting a girl.

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