Last night, we fêted Guerlain's latest lipstick, Rouge Automatique, and had the fifth floor of Bergdof bustling with beauty junkies getting their very necessary lipstick fix. And, in-between makeovers with Guerlain lead makeup artist Jason Beer and team, the crowd happily sipped on Champagne and sampled seriously tasty mini-macarons and bite-sized cupcakes with lipstick shade-inspired icing. Also on the agenda? Checking out Rogue Automatique's one-touch packaging: Inspired by a 1936 lipstick from the Guerlain archives, just a push of the slide and the lipstick bullet appears from within the gilded, luxe rectangle—no cap required. Click through to see partygoers showing off their perfectly hued kissers.