As they get older, the pair who have spent almost $250,000 on cosmetic surgery, admit there’s nothing they won’t do together – even falling pregnant to live-in love Ben Byrne, 32.
“If she got pregnant I’d make sure I got pregnant,” one twin tells a two-part Insight show on SBS about how identical twins change as they age.
“I’d make sure it happens for our body, like both the same.”
Of their boyfriend’s role in their pregnancy plan, the sisters say: “Yeah, he’s got a lot of work. He needs twice the energy.”
But they also say one, or the other, would consider undertaking IVF in a bid to ensure they were both pregnant at the same time.
However, it is not imperative that their children be born at the same time, or even on the same day, they said.
“[We] just have to be pregnant at the same time,” one says.
“Yeah, we just want to be the same in everything,” the other adds.
It’s double, or nothing, for Anna and Lucy in every sense of the word.
The sisters also share a car and Facebook account and go to extraordinary lengths to eat the same things at the same time, and even move in the same way at the same time.
“If she walks a few metres I need to walk a few metres, because we have to burn the same calories,” says Anna.
“That’s us, I want my body to look the same as my sister’s; we don’t want to weigh differently and I know we never will.”
Of their shared boyfriend, who they met on Facebook, Anna and Lucy say: “It just works.”
The three share a “super king-sized bed”, in the downstairs flat of the twins’ mother’s house.
“He never favours one twin. If he kisses me he’ll kiss my sister straight afterwards. There’s no jealousy. There’s no separation between us,” they say.
“He’s a twin and he understands the bonds. He’s fraternal … but he understands we want to be together all the time.”
The twins say their previous relationships with separate boyfriends failed “because we’re with each other 24/7, every single day, every minute of our life together”.