Rosie Huntington-Whiteley might be the face and designer of the best selling lingerie brand in history, but being 'Brand Rosie' isn't all silky twin sets and smiles.
A brace-clad 16-year-old Huntington-Whiteley might have trundled along to castings and shoots after receiving faxes, but now "there's more engagement… You're no longer this one-dimensional image. It's more expected now for supermodels to be smart, to have opinions, to have a personality."
While the Cara Delevingnes of the modelling world stick to a 'work hard, play hard' mantra and 'warts and all' social media approach, for Rosie, who can't help but read the ever disparaging Mail Online, her career is not so carefree. "Everyone wants to see you fall," she explains.
Self-deprecating and "nervous in public" she may be, but Rosie has made sure she puts her penny's worth into the modelling industry. As a youngster starting out she recalls one agent advising her to eat "a single piece of sushi a day". Signing a contract with her new agency, Rosie asked what guidance new starters received. "I felt that there was never anything for me, no workshops, no people letting you know how you should be eating or what you should be wearing to castings."
Blighted by an experience with fake Ugg boots as a teen - "I remember walking into a restaurant wearing them and literally everybody turned to look at me, and they all laughed" - it's understandable Rosie feels a motherly obligation towards aspiring models.
And for the girl who's response to the sushi diet agent was "Go f*** yourself!", we think she might make for a very intuitive mentor indeed.