Simone Holtznagel strips off and enjoys a steamy hot tub with Jono Castano

She’s the sizzling blonde bombshell whose sensational figure got her on the cover of Playboy. 

And on Sunday, celebrity trainer Jono Castano was living his best life when he enjoyed a steamy hot tub with Australia’s Next Top Model star Simone Holtznagel in New Zealand.

In footage shared to Instagram, Simone, 29, and Jono, 31, are seen having the time of theirs lives in one of Queenstown’s famous onsen pools.

Simone appears topless in the great outdoors as she snuggles up to her hunky man, while storm clouds brew in the distance. 

The leggy stunner had her hair tied up for the occasion as they tenderly embraced. 

The couple’s sexy display comes after Simone happily posed in her birthday suit. 

Sharing an image to Instagram, she looked nothing short of sensational as she posed in a Siya Slice Gather Dress in black designed by label By Johnny. 

Celebrity trainer Jono Castano was living his best life when he enjoyed a steamy hot tub with Australia’s Next Top Model star Simone Holtznagel in New Zealand

Simone allowed her famous long locks to cascade down her back in the photo, and kept her makeup palette ultra-glam with a smokey eye and lashings of mascara. 

Simone and Jono have been surprisingly tight-lipped about their romance aside from a handful of social media posts.

They couple confirmed their romance in May when they were seeing locking lips at a Mimi’s in Coogee. 

Simone Holtznagel sizzled as she struck a pose in her ‘birthday suit’. Sharing an image to Instagram, she looked nothing short of sensational as she posed in a Siya Slice Gather Dress in black designed by label By Johnny

Mimi’s is a celebrity hotspot owned by Justin Hemmes, who is dating Simone’s sister Madeline.

Their relationship comes after Jono’s split with wife Amy.

The pair remain on good terms and still co-own Acero gym in Sydney.

Their relationship comes after Jono’s split with wife Amy. Pictured: Simone and Jono