Kate Hudson shows off her killer abs in a yellow bikini while sunbathing with BFF Sophie Lopez

The have been longtime colleagues and best friends.

But apparently, with her busy work schedule and family life, Kate Hudson hasn’t been able to spend as much quality much time with her stylist gal pal Sophie Lopez.

But that all changed Saturday when the actress, 42, decided to take advantage of the gorgeous Southern California weather by stripping down into a revealing bikini and soaking up the sun with her BFF.

Hudson, 42, took to Instagram and shared a photo of their reunion showing them working on their tans while lounging on a deck.

‘Got the band back together for a day of fun in the ☀️[sun} #reemergence #missedmybestie,’ she joked in the caption.  

The Almost Famous star showed off her ripped abs in a revealing yellow bikini. 

She also donned dark sunglasses and had her blonde locks styled long and stringy well past her shoulders.

Lopez laid to her right dressed in a dark brown bikini, cool sunglasses, and her long brown tresses pulled back into a bun.

Just last week, the celebrity stylist shared a sweet birthday message to Hudson on Instagram. 

‘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 a photo showing the ladies striking seductive poses.

One of their adventures together was a trip to London, where they spent some quality time with Hudson’s mother Goldie Hawn.   

‘I do miss a good shindig #tbt #imisslondon,’ Hudson wrote alongside a photo of the three ladies partying it up in the British capital.

Lopez could be seen puckering up her lips as Hudson and Hawn flashed their trademark beaming smiles in the throwback snap.

It turns out Lopez met Hudson when she was styling the British rock band Muse. The guys in the group introduced her to Hudson when they were all in Los Angeles. 

Lopez gushed about her gal pal when she was asked what she enjoys about working with her gal pal. 

‘I’ve known her for a long time, but she still gets excited every time I bring a rack of clothes in. Not everybody enjoys fittings or the process, but she really does,’ she revealed in an interview with CFDA.

‘She’s just one of the people who makes every day feel like the first day with her enthusiasm and energy.’     

Hudson also took to Instagram on Saturday and posted a few photos and video clips of herself in bed with her two-and-a-half-year-old daughter Rani.