Charlotte Sarkozy, the ex-wife of Olivier Sarkozy, has spoken out about his relationship with Mary-Kate Olsen, branding the pair as “grotesque”.

Speaking to the National Enquirer about their blooming relationship Charlotte Sarkozy said: “That’s not right. It’s grotesque.”

Mary-Kate Olsen is 17 years junior to Olivier Sarkozy, but they are said to be “head over heels” after being spotted cuddling up to each other at Madison Square Gardens on April 25.

An insider also told the National Enquirer: “Charlotte certainly won’t want her kids to be around Mary-Kate, who has a history of wild-partying and booze binges.”

Charlotte Sarkozy, the ex-wife of Olivier Sarkozy, has spoken out about his relationship with Mary-Kate Olsen, branding the pair as “grotesque”.

Charlotte and Olivier Sarkozy have two children together.

Charlotte – a children’s book author – married the former French president’s half brother in 1997 and divorced him around 13 years later. He has previously been linked to actress Stella Schabnel, 29.

When the unlikely couple was first snapped at the New York Knicks game at the end of April, Olivier Sarkozy – an investment banker – was seen stroking Mary Kate Olsen’s hair and whispering in her ear.

They are also said to have enjoyed a break together in the Hamptons recently.

The asset manager further stirs up the eclectic mix of Mary-Kate Olsen’s boyfriends, who have included artists, actors and shipping heirs.

Mary Kate Olsen has also dated New York artist Nate Lowman for two years before their split in 2010.

She has also hinted at how breaking up with her one-time boyfriend, Greek shipping heir Stavros Niarchos led to her drop out of NYU in 2005.

Mary-Kate Olsen has also been linked to shoe designer Seth Campbell and the late actor Heath Ledger before his death in 2008.

News of her blossoming love life comes as business also appears to be doing well. Along with twin sister Ashley, Mary-Kate Olsen was recently listed in a list of the fashion’s top 30 names under 30.