Celebrity·Posted on May 8, 2013Sienna Miller Locks Lips With Model Cara DelevingneOf course it happened at the star-studded Met Gala.by Tommy WeselyBuzzFeed StaffLinkFacebookPinterestTwitterMail Cara Delevingne turned heads with her stunning outfit at the Met Ball. But that wasn't enough for her and pal Sienna Miller. They were ready for a good time. And from the looks of this tweet and Instagram they had a VERY good time. Hopefully, Sienna's fiancé, Tom Sturridge, isn't too upset. Hmmmmmm.