Former Home & Away star Isabel Lucas, has announced she is expecting her first child, with partner Cyrus Sutton, an American filmmaker and Surfer.

The 40-year-old star took to Instagram to share the happy news, with a series of beachside photos showing off her growing baby bump.

“Sometimes words flow and sometimes the mystery is too vast and all that remains, is to feel. A new forever exists here. Among petals of silent wonder and pure love,” she wrote in the caption.

“Together we hold this miracle with tender heartful hands.”

It’s not known how long the couple have been together, with Lucas making their relationship public in August this year.

Fans and fellow celebrities have shared their well-wishes to the actress.

“Can’t wait to see you as a mother and for these little babies to be together. We love you guys xxx,” wrote actress Teresa Palmer.

 “Oh Izzy!! This made my heart so happy. Sending you and your sweet baby so much mad love,” Slumdog Millionaire actress Freida Pinto added.

“You are going to be the best mum!” wrote one fan.

“Congratulations Isabel and Cyrus! You will make a wonderful mother – lucky little bubba! And you’ll love it and find it so life enriching too!” another added.

Lucas played Tasha Andrews on Home & Away for three years and previously dated Chris Hemsworth when they met on set of the beloved Aussie soap.

Images: Instagram