Simone Holtznagel has taken to being a new mum very quickly and called herself 'lord of the babies' on Monday.

The model, 30, took to Instagram with a video of herself breastfeeding her newborn daughter Gia, while rocking another infant to sleep. 

According to her other Stories, the second baby, Rosie, is seven weeks older than baby Gia and belongs to Simone's dear friend Anna Cassar.

The adorable clip saw the blonde beauty sitting in a chair with Gia propped back on a pillow in the new mum's lap as she breastfed. 

Simone then panned the video down to reveal she was rocking Rosie to sleep in a baby bouncer with her foot. 

Simone Holtznagel, 30, has taken to being a new-mum very quickly as she dubbed herself 'lord of the babies' on Monday. Pictured with baby daughter Gia

Simone Holtznagel, 30, has taken to being a new-mum very quickly as she dubbed herself 'lord of the babies' on Monday. Pictured with baby daughter Gia

'Lord of the babies they call me,' Simone captioned the sweet video.

Simone has been embracing motherhood since welcoming her baby daughter Gia in March with partner Jono Castano.

The doting mother shared an adorable video in May of her newborn daughter enjoying a hydrotherapy session.

The model took to Instagram with a video of herself breastfeeding her newborn daughter Gia, while rocking another infant to sleep
According to her other Stories, the second baby, Rosie, is seven weeks older than baby Gia and belongs to Simone's dear friend Anna Cassar

The model took to Instagram with a video of herself breastfeeding her newborn daughter Gia, while rocking another infant to sleep

In the video, Gia, who was six weeks old at the time, was seen bouncing in the water assisted by a swim aid, better known as a baby neck float.

Gia appeared to be enjoying the hydrotherapy as she flashed a smile and laughed while bobbing around in the pool. 

'Muffin gurl goes to the spa,' proud mother Simone captioned the sweet video.

Simone and her personal trainer boyfriend Jono, 33, (left) welcomed Gia, their first child together, on Easter Sunday this year

Simone and her personal trainer boyfriend Jono, 33, (left) welcomed Gia, their first child together, on Easter Sunday this year

Infant hydrotherapy can help to strengthen the bones and muscles of a child and can also assist with growing pains. 

It is not the first time that Simone has taken the little one to enjoy a hydrotherapy session, as she posted a video of Gia's first ever session in April.

Simone and her personal trainer boyfriend Jono, 33, welcomed Gia, their first child together, on Easter Sunday this year. 

She announced the happy news on her Instagram page alongside a series of adorable photos of her newborn in the first week of April.