And Kourtney Kardashian was at it again on Thursday, flaunting her lithe frame in a chic beige bikini with gold trim.
The shot, which appeared to be a throwback snap, featured the reality star pouting in a mirror wearing just the bikini and a pair of rimless sunglasses.
Kourtney's post came a couple of days after she showed off her figure in a black and white strapless dress with lace up heels at sister Kendall Jenner's birthday bash.
Kourtney and Khloe left Catch restaurant in Los Angeles together after the intimate family celebration.
The mother-of-three, 37, and her 32-year-old sister temporarily stole the show in chic co-coordinating mini dresses - flashing their slender pins.
The eldest of the clan Kourtney first caught attention in a high-shine metallic mini dress, which clung to her petite and womanly frame.
Formed of bedazzling silver silk, the lingerie slip-style number was then lined with delicate black lace, giving the outfit a sexier feel.
Falling high up her thigh, the dress showed off the reality star's leggy figure for all to see - which she further elongated by a pair of chic pointed heeled sandals which she laced at the ankle.
Accessoring only with a black clutch and keeping her brown tresses in classic, voluminous waves, the brunette beauty kept the focus on her knockout dress as she hit the town with her sisters to party in style.
By her side was younger sister Khloe Kardashian, who matched her best pal in an equally short and chic mini frock.
The tall blonde emphasised her enviably womanly curves in a figure-hugging black dress, which fell to mid-thigh to show off her long and lean bronzed legs for all to see.
The stylish LBD was of a long-sleeved style and was secured by a chunky high neckline, embellished with bronze and gold beads and sequins.
The flattering number, which clung to the star's tiny waist and rounded derriere, was then teamed with a funky pair of black stilettos, which featured pretty scalloped straps.
Khloe emphasised her naturally stunning features by styling her blonde bob into simple tousled curls, and adding a slick of dark lashes and taupe lipstick.
The glamorous pair headed to celebrate Kendall's big day with a host of family members - including Kourtney's on/off love Scott Disick, sister Kylie, momager Kris and Kendall's father Caitlyn Jenner.
However high-profile sister Kim was nowhere to be seen - having removed herself from the limelight in recent weeks after being held at gunpoint in Paris last month.
Kendall herself ensured she was the star of the show in an eye-catching silver dress, which plunged daringly low to show off ample amounts of gorgeous, glowing skin.
Birthday girl Kendall no doubt enjoyed a few beverages with her nearest and dearest as she turned the legal drinking age in the US - starting the night in Delilah in LA before heading to Catch to party into the night.
She looked more confident and comfortable than ever - despite admitting she suffered moments of 'paralysis' which 'feel like her heart stops', in a recent trailer for Keeping Up With The Kardashians.
