The men's label, which claims to be a "one-stop shop for all your clothing needs - whatever your style, size or budget", is pretty low-key but it's a good fashion gig to get the 24-year-old started.
Rosie is a regular on the Balmain and Givenchy catwalks, she's fronted endless glossy magazine covers (Vogue, Love magazine, Harper's Bazaar, Elle...) and has her own lingerie line with M&S - so guaranteed she's got some contacts for her bro.
He may have big plans for breaking into the fashion industry but when he's not striking a pose in front of the camera, Toby (all 6ft 4in of him) spends his time at Workshop Gymnasium where he's a Performance Specialist. *Flex*
Maybe it's Toby who's behind Rosie's killer figure? She's already given him a few shout outs on Instagram - and yes, we can spot the resemblance.
Then there's Florence, 22, the youngest of the Huntington-Whitely brood, and she's already earned her modelling stripes for Jack Wills.