Sam Frost was famously single after her reality TV dating days. Then she met her brother's co-star.

Sam Frost has just announced she's expecting baby number two!

In a new Instagram post, the former Bachelor and Bachelorette star shared a photo of herself, with her fiancé and previous Australian Survivor contestant, Jordie Hansen, and their son, Ted.

The caption read, "Our family is growing from three to four. It has been a wild ride but we are extremely grateful our little one is healthy and doing okay in there. We are all very excited to meet you, especially your big brother!"

Too sweet for words.

View this post on Instagram

A post shared by Sam Frost (@samfrost)

The expecting parents first went public with their relationship in March 2022, after meeting through Frost's younger brother, Alex Frost, who was also a contestant on Survivor.

"I bailed my brother up and I was like 'is he single or what?' and then he was like 'ah don't be weird.' He's like 'you're so embarrassing!'" Sam revealed on the radio with Fitzy and Wippa.

And things moved pretty quickly from there for the love birds.

Six months after they started dating, the couple announced their engagement in July 2022 on their podcast, Jordie and Sam's Rural Road Trip.

Recalling his spontaneous proposal, Hansen explained he popped the question during their road trip in South Australia in May 2022.

"We were at Uluru, we’d just woken up, having brekky, we were about to head down south. Sambo had just been delivered her coffee, so I said to her, 'Hey, when would you say yes to getting married?'" he began.

"I said, 'Pretty much, any time from now,'" Frost added.

"I took that as, I’m going to do it this afternoon," Hansen said.

Frost said she had "no idea" that he was going to propose.

"Him rushing me out of Yulara was no surprise for me because he's always busy and on to the next thing. I was just like, 'Mate relax, let me finish my coffee!' He was twitching and fanging to get there but that's just Jordie," she said.

The couple eventually made it to Breakaways at Coober Pedy in time for her to say 'yes' as the sun set.

However, the proposal didn't go entirely to plan. Hansen mistakenly set up a camera at the wrong angle to capture the moment.

"We've pressed play on the video and Sam has gone, 'Oh darling, we're out of shot'. All you can see is the bottom of my foot because I was down on one knee," he laughed.

"I remember saying something along the lines of, 'We love jokes but this is not one of them'. This is very serious for me. It's a life commitment. I almost cried, Sam reckons I cried. We celebrated with a big hug and a kiss."

View this post on Instagram

Sam and Jordie previously welcomed their first child and soon-to-be big brother, Ted, in March 2023.

"This is Ted," Sam shared on Instagram at the time.

"Theodore Paul Frost-Hansen. There's no words to describe how much we love you."

And their pregnancy announcement was just as heartwarming the first time around. They first shared news of the pregnancy just two months after their engagement with an adorable post.

"There is a tiny human coming soon... everyone act surprised when he inevitably inherits his parents' odd sense of humour," Frost captioned a photo of the couple kissing while holding an ultrasound scan.

"We don't take ourselves or life too seriously, and we're hoping to teach our tiny one the same values we share... the importance of being unapologetically yourself, always finding the fun and humour in all the small things, and that being kind, loving and empathetic is a superpower."

Frost went on to thank her friends and family who had kept her pregnancy a secret up until that point.

The announcement was also accompanied by a video of Frost singing about her pregnancy while Hansen played guitar.

"One of us is growing a baby. And it's not you," Frost sang.

"I said, 'I think I'd know, I was there,'" Hansen chimed in.

Now, the happy family are ready to welcome a fourth member.

Feature image: Instagram/samfrost.