Poppy is definitely not the fun Delevingne sister. In advance of her wedding to James Cook later this month, she has banned her guests from being on social media, according to The Telegraph. This is bad news indeed for sister Cara, who is prone to documenting her entire life on social media. (She just posted a gem of a video of Reese Witherspoon, Zooey Deschanel, and Kate Upton struggling to pronounce her name.) However, if you’re just dying to see photographic documentation of Poppy’s wedding, here’s a cheerful caveat: She has given the photo exclusive to Porter magazine.