Is this Roxy's raciest shoot yet?

She's no stranger to flashing the flesh in a candid bikini snap or two, but now Roxy Jacenko has posed for what could be deemed her raciest photo shoot yet.

Taking to Instagram, the 37-year-old mother-of-two has shared some behind-the-scenes snaps, one of which is particular rsique for the Sweaty Betty founder.

The photo shows the blonde bombshell's derriere on display, as she wears just a sexy G-string teamed with a sparkly dress.

"Ponytail Goals," reads the image's caption, but fans would be forgiven for being distracted from her hairstyle thanks to the flesh on show.

Roxy initially posted the photo, before deleting and then reuploading again, and it's paid off as she's attracted plenty of likes for the sizzling snap.

People have also left comments, with one writing, "Butt goals", and another penning, "Cheeky cheeky".

She also shared another behind-the-scenes image revealing a hint of her underwear, as she gets a spray tan for the shoot.

Want more celebrity, entertainment and lifestyle news? Follow Be on Facebook, Twitter, Pinterest, Tumblr and Instagram