The Balmain creative director cast four sets of celebrity siblings - Gigi and Bella Hadid, Kendall and Kylie Jenner, Joan and Erika Smalls and Fernando and Armando Cabral - for his opulent A/W '15 campaign. Shot by Mario Sorrenti and inspired by the heady decadence of '80s Paris, the images are as intimate as they are extravagant - proving Rousteing to be right on the money with his latest move.

The creative director's inspiration stemmed from his recent men's campaign featuring Kim Kardashian and Kanye West. "While I watched Mario capture a kiss last fall, I was struck by the love and emotion that I was witnessing in front of me," he told style.com. "Starting with a determination to once again focus on the beauty of an intimate connection, my team and I quickly concluded that a celebration of the unique and unconditional love of siblings is a natural progression from the spirit of last season. Collectively, they represent the fresh, diverse and open spirit of a new generation of fashion."

Related story: The 32 coolest celeb couples of all time

While we're used to seeing Kendall and Kylie and Gigi and Bella arm in arm, Joan's striking sister Erika was a something of a surprise - but if these shots of the model beauty are anything to go by, we'll soon be seeing a lot more of the Smalls sisters together. 

Related stories: 
Kendall versus Kim: which Kardashian rules them all?
Couture for hair? Balmain's luxurious entry into beauty