Welcome to the family! Ashley Olsen joins sister Mary-Kate for lunch date with live-in boyfriend Olivier Sarkozy

Still going strong after six months, Mary-Kate Olsen and Olivier Sarkozy are also live in lovers. Despite their twenty year age difference, the pair share a palatial East Village love nest bought by Sarkozy earlier this year. And now it appears sister Ashley is embracing the couple's relationship and welcoming Olivier into the fold. Smoke break: Olivier Sarkozy smokes outside while his girlfriend Mary-Kate, left and her sister Ashley Olsen, right, enter a New York eatery Smoke break: Olivier Sarkozy smokes outside while his girlfriend Mary-Kate, left and her sister Ashley Olsen, right, enter a New York eatery She was spotted sharing lunch with her sister and Sarkozy at upscale eatery Sant Ambroeus in New York City's West Village on Saturday. The fashionable trio caused a stir at the venue. Sarkozy looked casual in plaid shirt and jeans, while 26-year-old Mary-Kate opted for an all black look of leather pants, boots and jacket, complimented with a flowing scarf. lAshley blended in, looking relaxed in flats, jeans and a pink cashmere coat. * 'He thinks she's an immature schoolgirl': Liam Hemsworth 'fed up with fiancee Miley Cyrus's childish attitude' * Prima ballerina! Suri is pretty in pink as the overachieving six-year-old leaves dance class with her mother Katie Holmes Meanwhile Sarkozy's ex-wife Charlotte, whom he divorced last year, has branded his relationship with Olsen as 'grotesque'. Pink lady: Mary-Kate covered up in an oversized pastel pink coat and baggy denim jeans Pink lady: Ashley covered up in an oversized pastel pink coat and baggy denim jeans Pink lady: Ashley covered up in an oversized pastel pink coat and baggy denim jeans Worse for wear: The conservative actress-turned-fashion designer wore her hair in a messy style Worse for wear: The conservative actress-turned-fashion designer wore her hair in a messy style Yet by all appearances, the cavalier half-brother of former French president, Nicolas Sarkozy isn't concerned with the criticism. He appeared in a jovial mood as he chatted with assorted friends while smoking a cigarette outside the eatery. Meanwhile, dating older men seems to run in the family for the pint-sized uber-rich actresses-turned-fashion designers. Jovial: Sarkozy seemed to be in a good mood as he chatted with another man at the restaurant Jovial: Sarkozy seemed to be in a good mood as he chatted with another man at the restaurant Mary-Kate’s twin sister Ashley Olsen was 21 when she dated biking super star Lance Armstrong who was 36 at the time - a 15 year age difference. Olivier is divorced and has two children with his ex-wife Charlotte, and he is the managing director of the Washington, D.C. based Carlyle Group. Mary-Kate also has a history of dating high profile men. She was linked romantically to Heath Ledger before his death and dated Greek shipping heir and Paris Hilton's ex Stavros Niarchos. social: the happy couple are regulars at various New York events social: the happy couple are regulars at various New York events