Constable Maggie Doyle may have considered issuing a citation for offensive behaviour if she had witnessed Lisa McCune and a semi-clad Teddy Tahu Rhodes’ latest public display of over-the-top affection. But Lisa, 40, who we came to love when she played Maggie Doyle in Blue Heelers, seems to have no issue with acting like a love-struck teenager after falling head-over-heels for her twice-married South Pacific co-star.

The passionate couple were caught out yet again last week when they were spotted all over each other in a park in Sydney’s East Balmain, shocking one observer with their flagrant display of passion. “They were rolling around on the ground, kissing, cuddling and fondling each other, and once he had his hand inside her top,” claims the observer. At one point a bare-chested Teddy even lay on top of Lisa.

The midday romp happened last Tuesday after Teddy, 46, had picked up Lisa from Sydney airport. She was returning to the Harbour city after a visit home to her husband Tim Disney and three children in Melbourne. Sex expert and social commentator Bettina Arndt says she finds the very public nature of their affair “weird” and quite disturbing considering they both have young children and partners or ex-partners.

“It’s one thing to be madly in love and throw caution to the wind, but for celebrities to be deliberately flaunting a sexual or romantic relationship when they know they are being watched by the media is just crazy,” Bettina says. “I think this is reprehensible behaviour and that they should both grow up. It is totally inappropriate, immature and very, very cruel to their families.”

Read more and see the pictures of Lisa and Teddy together again in this week's Woman’s Day on sale Monday September 10, 2012.