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Paulina Gretzky, Instagram

Instagram

Cool for the summer, indeed. 

Paulina Gretzkywho welcomed a son with golfer fiancé Dustin Johnson on Jan. 19, took to Instagram on Tuesday to show off her skinny post-baby bod while lounging on a boat with pals. 

"Cool for the summer #jeremyc0hen @sammaddox," the 26-year-old new mom captioned the pic in which her stunning diamond engagement ring is also on full display. 

Of course, this isn't the first time the blond beauty has made our jaws drop with a bikini shot—last month, she posted an image of herself wearing a skimpy black string bikini that left nearly nothing to the imagination. 

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Giving his daddy a big hug for good luck this week at Whistling Straits ?? @djohnsonpga

A video posted by Paulina Gretzky (@paulinagretzky) on

The famous daughter of NHL great Wayne Gretzky gave birth to her first child, Tatum Gretzky Johnson, just seven months ago. She regularly shares photos of her wee one on Instagram, most recently posting an aww-worthy video of her son giving daddy a good luck hug ahead of the 2015 PGA Championship at Whistling Straits. 

Following the birth of their baby boy, Johnson told People that fatherhood makes life "a lot easier." 

Missing my lil guy so much right now!!!!

A photo posted by Paulina Gretzky (@paulinagretzky) on

"It's hard to describe, but just from the first day he's born, your perspective on life completely changes," he said in March. "Things that were important aren't important anymore. He's kind of the only thing that's really important, and being there for him and being a role model for him.

READ: Paulina Gretzky comforts Dustin Johnson after he loses U.S. Open by one stroke

Paulina Gretzky, Dustin Johnson

Michael Buckner/AMA2013/Getty Images for DCP

Gretzky also echoed similar sentiments that same month after Johnson won the World Golf Cadillac Championships in Miami. 

"It's just unbelievable," she told reporters in March, per ET Canada. "Dustin's the best dad, he's my best friend. He's been so supportive with me and we're just there for each other. I couldn't be happier for him."

Johnson and Gretzky got engaged in August 2013 after just seven months of dating. The two have yet to reveal a wedding date. 

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