Paulina Gretzky posts sexy bikini picture sparking loved-up response from fiance Dustin Johnson

DUSTIN JOHNSON declared his love for fiancee Paulina Gretzky after she posted a stunning bikini snap.

The 31-year-old birthday girl left little to the imagination as she soaked up the sunshine during her celebratory trip to the Caribbean.

Johnson, 35, and Gretzky were joined by friends as they jetted off to Saint Barthelemy to celebrate her big day.

And she sent her 777,000 Instagram followers into meltdown as she posed for a picture in a skimpy gold bikini.

Johnson, who has been engaged to the model and pop star since 2013, decided to leave a cheeky comment.

The 2016 U.S Open winner wrote: "So beautiful! Love you so much."

During their time together in the Bahamas, the loved-up couple have enjoyed plenty of pizza and sipped drinks from a disco ball-shaped bowl.

The world No5 golfer has been dating Gretzky since 2012 and they have two children together.

But their public relationship has not been without its up and downs.

Gretzky removed all of the images of Johnson from her Instagram account last year over his links to socialite Yassie Safai.

And at the time, she sent her fans wild as she shared a stunning snap of herself in a bright pink bikini.