STUNNING golf WAG Paulina Gretzky has shown off her underboob in a risque black bikini.

The model also filmed her husband Dustin Johnson backflipping off a superyacht as they enjoyed a trip on the vessel.

Paulina is currently on holiday with Johnson and has shared snaps as they relaxed and soaked up the sun on a boat trip with pals.

She posted a series of pictures and videos to her Instagram story, including one of herself in a daring black bikini.

Her underboob was on display in the racy snap, which she shared with her one million followers.

Paulina also sported a skimpy multi-coloured bikini as she walked down a set of stairs on the yacht.

Meanwhile, Johnson was filmed by his wife holding onto the side of the boat before backflipping into the water.

The daughter of ice hockey legend Wayne Gretzky, Paulina regularly shows off her glamorous lifestyle on social media.

Her followers are often treated to insights from her visits to pool parties, modelling shoots and trips on private jets.

She is also known to flaunt her physique, having shown off her underboob in other risque outfits in the past.

One such post saw her stun her fans by posing in a striking leather ensemble.

Other sexy posts have included joining the no bra club to show off her toned midriff.

Paulina also regularly has her fans swooning over bikini selfies and busty displays on Instagram.

Another recent post even had a fan tell her she was “making the sun jealous”.