"We worked really closely because the show required a lot of changes and outfits. We had to do so many tests and fittings. [Christian] also went through a huge transformation during the process. I needed to know her body perfectly. I think she trusted me completely; at some point, we were doing fittings even without a mirror. Christian's style is super laidback and comfy — she loves baggy clothes, big hoodies. Selena's looks were anything but comfy, so I'm sure Christian suffered that. In the end, after a year and a half, she was used to it."