As they made their way home from Paris this weekend, engagement rumours are rife with Cara Delevingne and St Vincent.

The pair were spotted in the airport, and St Vincent was sporting quite a big rock on her finger.

Cara inspected the ring closely, worn on St Vincent's (real name Annie Clark) right hand – which gay and lesbian communities are considering to be a new-Millennium way of marking a monogamous relationship, according to the Daily Mail.

Last year, St Vincent shared a photo on social media with the writing "Marry me Annie Clark," which made her fans speculate if there's going to be a wedding soon.

Either way, they look like a happy couple and we hope the best for them.

BUT imagine how awesome Cara's wedding would be. Swoon.