At the ripe old ages of seventeen and fifteen, celeb progeny Jaden and Willow Smith have enjoyed their fair share of the spotlight, mug­ging for cameras and covering major magazines. Both have released albums; both have prolific, precisely curated Insta­ gram accounts; and both have extended their reach this season through alliances with stately French fashion behemoths Louis Vuitton and Chanel, cementing their status as our current arbiters of What the Kids Are Doing.

The siblings’ Paris Fashion Week takeover began with Willow, who arrived at the Grand Palais wearing head-­to-­toe Chanel styled with her typical idiosyncratic flair: skintight jumpsuit, classic cap­ toe boots, and fingerless gloves. “Getting dressed for the Chanel show was a piece of cake,” she says. “They have so many beautiful pieces that fit my vibe perfectly.” The vibe in question is a proprietary blend of sylph and southern California, and it’s evidently an admixture that fills a niche in Chanel’s collection of brand ambassadors: Though Willow’s appearance at the show announced the partner­ ship, it’s a relationship that’s been a couple of years in the making.

Jaden, meanwhile, has already been a chiseled face of Louis Vuit­ton for some months. In January he appeared with models Sarah Brannon, Rianne Van Rompaey, and Jean Campbell, legs akimbo in a studded black kilt—the embodiment of transcendent androgyny. So when he turned up (in one of Nicolas Ghesquière’s envy-inducing motocross jackets) at the brand’s fall show, it wasn’t exactly a surprise, but it was a moment—further crystallization of fashion’s second­-gen teen takeover (see also Lily-Rose Depp, Lourdes Leon). Willow, for her part, is handling the new experience with characteristic celestial charm. “My favorite part of the show,” she says sweetly, “was that everybody had a front­row seat.”