Pregnant Jess Hart reveals gender of second baby eight months after welcoming Baby-Rae: 'It's going to be a ride'

Picture: Instagram
Picture: Instagram 

Jess Hart has announced she's expecting a baby boy, after sharing details of her gender reveal party on Instagram.

The Australian supermodel, who shares eight-month-old daughter Baby-Rae with partner James Kirkham, took to social media to share snaps from the elaborate event, captioning them: 'It's a bird, it's a plane, it's a ... What a special day, children are #miracles. We are beyond grateful."

The photos show an aeroplane flying a banner announcing 'It's a boy' as Hart and Kirkham embrace.

The couple were cheered on by friends, including Hart's sister Ashley and model Poppy Delevingne, who wrote: "Luckily it was what they wished for...Congratulations my loves."

Hart announced last she and Kirkham were expecting baby number two and that there would be just 14 months between the new addition and Baby-Rae. 

In a video message posted to Instagram, Hart said the couple were nervous, but excited. 

"It's going to be a ride, a trip," she said.

"I've just found out I'm pregnant again, which is exciting now after the initial shock of having two babies under two – Baby will be 14 months when baby number two arrives and James and I are really excited now, but it's a big thing," she continued.

"The biggest thing for me right now is I'm immediately pregnant and breastfeeding."