Khloe Kardashian and her sister Kylie Jenner stunned as they showed up to a bash celebrating twin sisters Malika and Khadijah Haqq on their 40th birthday on Friday.

The reality TV star, 38 - who was also joined by ex-boyfriend Tristan Thompson at the party - sparkled from head-to-toe as she showed off her toned legs in a glittering silver mini dress while braving the rain on her way to The Nice Guy in West Hollywood.

The mom-of-two - who has been friends with Malika for over two decades, after they met each other as teenagers in 1999 - teamed her exquisite look with a matching sparkling purse and strappy sandal heels.

The Good American founder also honored her BFF and her twin in a lengthy Instagram post, where she shared a number of throwback snaps of the trio. 

Meanwhile Kylie, 25, showed off her taut midriff in a racy black dress with a transparent midriff, which she paired with a black Matrix-style leather coat. 

The lipkit mogul added extra height to her look with a pair of black heels. 

Kylie wore transparent black stockings to keep her warm in the rainy nighttime weather.

Kylie's makeup was picture perfect as ever, with the beauty opting for matte lipstick and delicate bronze eyeshadow. 

Meanwhile Khloe kept her eyes shielded with a pair of sunglasses and had a black coat draped over her shoulders to keep warm.

She wore her blonde tresses parted in the middle and cascading down her shoulders for the night. 

Khloe's ex-boyfriend Tristan Thompson, 31, was also in attendance, wearing an all-black leather look, and coordinating with Khloe's dress in a pair of shimmery silver sneakers.

The NBA star sported a pair of skinny shades for the night and accessorized with a chunky ring.

Momager Kris Jenner, 67, was also present for the party, and looked elegant in a black blazer and slacks, and a sparkling black and silver top. 

Kris accessorized with sparkling silver earrings and accentuated her visage with soft glam. 

Also there to celebrate the twins was actress Lauren London, 38, who looked chic in a black coat and boots.

She paired the outfit with black sunglasses and wore her black locks down in bouncy curls.

Malika and Khadijah's mom Beverly Haqq looked glamorous as she arrived in a fur-trimmed coat, and was accompanied by a male companion. 

Another famous face in attendance was Diana Ross' son Evan Ross, 34, who looked cool as ever in a pale yellow top with a frilly collar underneath a black blazer. 

Nicole Williams English looked phenomenal in a black bodysuit and matching coat.

Nicole wore her black tresses in a slicked back bun, and donned chunky silver statement earrings.

She was joined by her husband Larry English, 37, who sported a black jacket, jeans and a baseball hat.

Kylie's friend Yris Palmer showed off her toned legs in blue bustier and a sparkling skirt.

The fashionista completed the look with a lengthy white coat and a shimmering pink purse.

She was joined by her beau Troy Daniels, who looked trendy in a blue denim outfit and a Belenciaga T-shirt.

Khloe and Kylie's sister Kim Kardashian, 42, shared some clips from inside the event. In one video she was seen hanging out with Kylie and mom Kris.

She was also pictured having a blast with her pal Tracy Romulus in another clip. Kim looked glamorous as ever wearing a chunky double layer gold necklace and a strapless black top.

Khloe shared a number of throwbacks of her and the twins to her Instagram, along with a gushing caption. 

'Happy birthday to my girls @malika @foreverkhadijah ♡' she began her celebratory Instagram post. 

'I want to thank you for choosing me over and over again to be your bestie. For allowing me to be apart of your life, Your journey on this planet. Thank you for trusting me with all that you do,' she went on.

'Thank you for holding my hand while we go through life. It’s a privilege and an honor to have a friendship as long as we have had and I cherish the years we have spent together. Ohhhhh the memories we have,' the sentimental beauty added.

Khloe continued to celebrate the twins, writing: 'I can’t wait to see what this next chapter has in store for you both. I know the magic that exists within your soul and I can’t wait to see you both sparkle brighter, and brighter with every year.'

She wrapped up the caption, thanking the sisters for 'never judging' her mistakes.

'Some people come into our lives and make it better, they make the music louder, the days brighter, and the happiness longer. Thank you for never judging me when I made mistakes, for laughing until we cried, for the sleepless nights of fun and for always being there.

'You both will always be my person, my ride or die, through thick and thin, until the end…..'

She also took to her Instagram Stories with more photos, while also celebrating hairstylist Jen Atkin's birthday.

'Happy birthday to my three beautiful Pisces,' she wrote on another snap.

The reality star then posted a snap from inside the bash, with a cup featuring the number 40. 

There was also a tray with disposable cameras to capture the night's events.