06/20/2012 12:55 pm ET Updated Jul 30, 2012

Mary-Kate Olsen Spotted With Olivier Sarkozy & His Daughter (VIDEO)

Mary-Kate Olsen and her much older French boyfriend are still going strong.

The 26-year-old actress reportedly started dating Olivier Sarkozy, the half-brother of former French president Nicolas Sarkozy, in April and was recently spotted spending some quality-time with the 42-year-old and his young daughter.

Olsen and the father-daughter duo were seen heading out to dinner in New York City's West Village neighborhood on June 14, reports the New York Daily News.

The paper notes that the two girls could pass for sisters, but despite the 16-year age difference between the billionaire fashion designer and Sarkozy, who is the managing director of the Carlyle Group's global financial services group, Olsen is head over heels for him.

"[Mary-Kate] is constantly complaining about boys not being mature enough for her. She got the kids out of her system," a source close to Olsen told Us Weekly. "Now being a businesswoman dominates her time, and she is rarely impressed with guys."

Rumors of the May-December romance first started in April when the two were spotted at a New York Knicks game together, and those dating rumors were confirmed when the pair spent the Memorial Day weekend together in the Hamptons.

The former child star has an interesting romantic past, having dated Max Winkler, the son of "Happy Days" star Henry Winkler; David Katzenberg, the son of DreamWorks CEO Jeffrey Katzenberg; Greek shipping heir Stavros Niarchos; and most recently artist Nate Lowman. Sarkozy married fashion writer Charlotte Bernard in 1997 and had two children together. The marriage didn't last however, and the two separated in 2010, before finalizing their divorce in 2011.

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