Cara Delevingne engaged to St Vincent?

Supermodel-actress Cara Delevingne is reportedly engaged to her girlfriend Annie Clark, aka St Vincent.
The couple sparked engagement speculations after the musician posted an image of marriage proposal on Instagram, reported Ace Showbiz.
The picture of the handwritten proposal features a message that read, "Marry Me Annie Clark." Vincent simply wrote, "Ok," alongside the snapshot. However, it's not clear yet whether the message is a serious request or just a note.
The couple, who reportedly has been dating since December 2014, has frequently spent time together. Last month, they were seen partying together at the De Grisogono "Divine in Cannes" dinner party hosted by the Swiss luxury jeweller.

Following the party, the pair spent a night having a dinner date at Tetou restaurant in Antibes, France.
More recently, the twosome were spotted holding hands while heading to their cozy dinner at Nobu after attending fashion event in New York.