'I gave birth to both of my brother's children.'

A Melbourne mother has been a surrogate for her brother – twice.

Rhiannon Stevens first offered to help her brother, Clinton, after he told his family he was gay 14 years ago.

“I’ve always said that when the time came, I’d help Clinton to have a child,” she told News.com.au.

Two years after Clinton, married his partner, Callum, Stevens fell pregnant using a donor egg and the couple’s sperm and carried the pair’s first child.

Zara was born a few days before Christmas in 2014 with both fathers at Stevens’ bedside.

Just weeks ago, the 35-year-old gave her brother and his partner their second daughter, Aiden.

Melbourne woman gifts gay brother and his partner two babies after becoming their surrogate – News Limited https://t.co/qTnVDIZEPk

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“It felt like the most natural thing in the world to offer to be his and Callum’s surrogate. I’ve never been concerned about having any difficulty handing the baby over to them at the end of the process,” she said.

“After Zara was born, it only took me three months to offer to go again.

“Clinton and Callum are absolutely wonderful with kids and helping them to become parents was a dream come true for me. I’d do it again in a heartbeat,” she said.

The Melbourne admin officer has three children of her own, Soraya, 10, Cobie, 8, and seven-year-old Mahli.

Stevens said her brother and his partner were great with kids and she could see they’d be “great dads”.

“It was a really easy decision for me. My three kids were completely fine with the fact that their mummy had grown a baby for their uncle and I loved seeing Clinton and Callum so happy.

“It took another year or so for the process to happen again but when it did, I was over the moon.

“I loved being an aunty to Zara and couldn’t wait to help give her a sibling.”