They took a trip to Paris, they were spotted jewellery shopping and now they’ve been spotted at the airport with what looks suspiciously like an engagement ring on Mary-Kate Olsens finger. Could it be that she and Olivier Sarkozy – brother of the former French President Nicholas – have gotten engaged?!

The couple were spied leaving the French capital – one of the most romantic places in the world obviously – yesterday and they looked happier than ever. Olivier couldn’t keep is hands of Mary-Kate and was spied constantly kissing her, giggling to himself like well, a big giggling man.

We have to admit when Olivier and tv-star turned fashion designer Mary-Kate started dating we could quite get our heads around it, how did they meet? Was the age gap too big? How did she ever manage to kiss him when she is at least 37ft shorted than him? But their relationship seems to have gone from strength to strength.

The couple are regularly seen out and about together – having met through mutual friends on the New York art scene (yep, we found out the answer to that question) – and share a flat in Manhatten. They are both major basketball fans and are regularly seen indulging in some serious PDAs courtside at NBA matches.

We can only imagine what her dress would be like if they WERE engaged, with her sister Ashley also in the design business (they own The Row label) maybe they could create something together. Given that they once designed one of the most expensive bags in the work $39thousands worth of crocodile skin, natch, the possibilities are endless.