07/21/2014 09:41 EDT | Updated 07/21/2014 09:59 EDT

Dustin Johnson Can't Keep His Hands Off Paulina Gretzky In A Bikini

Forget Kimye—Paulina Gretzky and Dustin Johnson are Instagram's hottest couple.

Proof: over the weekend, Johnson posted a steamy Insta-pic that showed him and Wayne Gretzky's eldest daughter wrapped in a passionate embrace.

Johnson, who turned 30 years old on June 22, captioned the pic, "Best b-day ever! I love you @paulinagretzky." The couple are seen kissing on a boat with a gorgeous view of the water behind them.

In the sexy snap, Paulina wears yet another tiny bikini that we haven't seen before: a black-and-blue stunner with a scuba-vibe. Obviously, the birthday boy had his hands all over his fiancée's lean figure.

For her part, Paulina posted a bday snap of her own, which showed her and her fiancé staring into each other's eyes as she holds a belated birthday cake.

Naturally, the Golf Digest cover gal was wearing something revealing: a black low-cut top that showed a generous amount of cleavage. But Dustin only had eyes for his gal's pretty face, which was glowing.

We can't wait for the wedding!

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