The social media star, who modeled a curve-hugging Versace dress and Lorraine Schwartz jewels, recruited quite a crew for her impromptu photo shoot.
Larson, clad in head-to-toe Chanel, re-grammed Jenner's photo and joked about her accidental run-in with the other attendees, writing, "I needed to go the bathroom and ended up famous." Shoe designer Tabitha Simmons shared a different angle via Instagram.
"#mirrorinthebathroom." Chambers Hammer offered another perspective, writing, "Ain't no party like a restroom party." Kardashian (in Vivienne Westwood) shared a Snapchat from the shoot, adding no commentary.
Michelle Monaghan, who shimmered in Paco Rabanne and Cartier, uploaded a cropped close-up, writing, "When you photobomb all the cool kids.
#MetGala #girlsbathroom #selfiecentral." The "no social media" policy, which was implemented in 2015, isn't taken as seriously as it once was.