The siblings dubbed the “world’s most identical twins,” Anna and Lucy DeCinque, have revealed their mom wants them both to get pregnant at the same time with their shared boyfriend’s babies.

The twins made the startling confession on Australia’s “Today” TV show. Any baby would be both half-sibling and cousin. The 33-year-old sisters, who are both dating 35-year-old Ben Byrne, said: “Love is love, we are all adults.

“Our mom’s actually convincing us to give birth naturally.

“I don’t know how that’s going to work.”

They continued: “We need to be pregnant at the same time.

“How is that going to work?

“It’s going to be another challenge. There’s a lot of pressure on Ben.”

Previously The Sun revealed the sisters both wanted to marry Byrne, although polygamy, having more than one wife, is banned under the Marriage Act 1961 in Australia.

“If we can change the government we would love to marry Ben,” they told “Today,” speaking at the same time.

“I think we should marry the same man. This is what works for us. People need to get that. We aren’t hurting us.”

The girls also told the show how they were going back to a “natural look having previously spent $S1750,00 on surgery.” “We’re really happy with how we are looking right now,” they said.

“We are a lot happier in ourselves. We’re a lot happier where we are today.”

In November, The Sun reported how they were bullied on social media for what they dubbed their “spider-eyed, trout pout.”

They told Australia’s New Idea magazine then: “We would block the comments, but down deep inside they were hurtful.

“The more popular we got, the more haters we had and we were getting called everything from ‘plastic Barbie dolls,’ to ‘fish lips.’

“We wanted the biggest everything – particularly lips. We loved the look and feel of big lips. Now we realize they were too big,” they said.

They spoke of their regret after plucking their eyebrows off so they could get a thin line tattooed on again.

They’ve also thrown away hair and eyelash extensions and stopped getting lip fillers.

Last year they revealed they had an astonishing 14 surgeries in 14 days, including mole removal, pixel lasering, lip filling and tattooing and eyebrow tattooing.

The bizarre fortnight of surgery started after Anna noticed Lucy had moles on her back that “needed removing.”

They told Women’s Day magazine: “It’s got to the point now where we’re searching for flaws in each other. At the first sign of something we don’t like, we start saving to fix it – because we want to have porcelain skin.”

The pair, from Perth, Western Australia, met mechanic Byrne in 2012, shortly before they found fame.

They were honest with him about what they wanted, they previously told The Sun.

“We were upfront that we came as a package, and he insisted that was fine with him,” Anna said.

“Being a non-identical twin himself, he said that he understood our bond.”

“We were still nervous, though,” added Lucy.

“We knew some guys might think it was kinky to date twins and see us as a trophy, so we had to feel sure that Ben genuinely liked both of us before we agreed to meet him.”

The duo began dating and Byrne – who lived a 40-minute drive away – moved in with the girls and their mom a year later.

“Ben treats us completely equally. If he kisses Anna, he kisses me right after, and holds both our hands when we’re out,” explained Lucy.

“We never feel jealous because we know he loves us the same.

“We all sleep together, but it’s not like a threesome as we don’t get involved with each other. Some people say it’s disgusting, but it works for us.”