Pregnant Simone Holtznagel shows off her baby bump in a

Pregnant Simone Holtznagel shows off her baby bump in a bikini during a romantic vacation with her boyfriend Jono Castano

Simone Holtznagel and her partner Jono Castano are just a few months away from welcoming their first child into the world.

But before the birth of their baby, the couple enjoys a romantic vacation together in Bali.

In a happy snap on Jono’s Instagram on Sunday, Simone showed off her growing baby bump in a white bikini.

The 30-year-old socialite was all smiles as she posed in a conservative white two-piece.

The blonde beauty held a bundle of towels in one arm while cradling her growing belly with the other.

Pregnant Simone Holtznagel showed off her baby bump in a bikini during a romantic vacation with boyfriend Jono Castano as they prepare for the birth of a baby girl

Pregnant Simone Holtznagel showed off her baby bump in a bikini during a romantic vacation with boyfriend Jono Castano as they prepare for the birth of a baby girl

Jono and Simone’s romantic journey comes just a week after the first ultrasound images of their unborn baby were released.

The glamorous couple, who are due to welcome a baby girl next March, released a video clip from one of their ultrasound appointments in Sydney last week.

Simone and Jono, 32, performed the Stevie Wonder hit “Isn’t She Lovely” along with the footage.

The celebrity personal trainer also added a red love heart emoji and tagged Simone.

In a happy snap on Jono's Instagram on Sunday, Simone showed off her growing baby bump in a white bikini

In a happy snap on Jono’s Instagram on Sunday, Simone showed off her growing baby bump in a white bikini

Simone and Jono shared a first look at pictures from their ultrasound appointment in Sydney last week, before welcoming their first child

Simone and Jono shared a first look at pictures from their ultrasound appointment in Sydney last week, before welcoming their first child

Last month, Simone announced the exciting news that she and Jono were expecting their first child together.

The model revealed in an Instagram post that the couple are expecting in March next year and have already decided on a name.

The beauty, who went public with her relationship with the celebrity trainer in 2022, told Who magazine she was over the moon about the news.

Simone and Jono are visibly overjoyed before the birth, as Jono plays the song “Isn't She Lovely” by Stevie Wonder in the clip

Simone and Jono are visibly overjoyed before the birth, as Jono plays the song “Isn’t She Lovely” by Stevie Wonder in the clip

“Children have always been part of our plan. “We talked about it more and more and then it just happened,” she told the publication.

Simone told the magazine she found out she was pregnant after feeling unusually ill following a holiday to the Maldives to celebrate her 30th birthday.

She decided to take a pregnancy test “on a whim” and it turned out to be morning sickness.

“The first few weeks were a little difficult, but not as bad as some people experience.” “We are very grateful,” she added.

A 3D graphic from the ultrasound showed the growing baby, with Jono writing:

A 3D graphic from the ultrasound showed the growing baby, with Jono writing: “Already posing.” The couple announced the pregnancy last month