Kate Hudson Flaunted Her Every Curve In This Tiny Yellow Bikini–We’re Speechless!

The snap sparked a huge fan reaction, and her self-professed "bestie" Sophie was one of the first to comment. "Best reemergence day ever! Love you babas," she responded.

Other fans chimed in and complimented the star's killer body. "Great abs Kate," one user said. Another commented: "What a six pack!!!! Nice work!"

We agree--it's hard to believe Kate is a mom of three!

Sophie, who has styled other A-listers including Kate's mom Goldie Hawn and supermodel Christie Brinkley, has been friends with Kate for years. Before the gal pals reunited to soak up some rays, Sophie took to the 'gram to wish the Bride Wars actress a happy birthday on April 19.

"Happy birthday @katehudson. So many incredible adventures together, couldn't be more grateful to have you as a friend. I love you," she gushed in the caption of the pic--which showed the BFFs striking a sedutive pose.

When Kate isn't soaking up rays with Sophie, she's still wowing us with her killer bikini bod.

One of the most recent posts in Kate's feed features an outdoor hang with her toddler daughter, Rani, where she struck a pose in a sexy red bikini. The image was promoting her wellness brand, To Be In Bloom--let's just say Kate is *very* good at doing her own advertising!