The 30-year-old former actress
was spotted on vacation in Antibes, France on September 24th.
Her twin sister Ashley, and her husband Olivier Sarkozy were by her side for the sunny excursion.
Mary Kate is normally known to shroud her petite frame in layers of baggy clothing, however, this time, she bravely donned a bikini.
Scary skinny Mary-Kate has spoken in the past about the rough patches in her life.
In 2008, she gave an interview to Elle
, glossing over rumors about her life.
"Look, I think it's important that what anybody goes through—and I'm not saying that it's true or not true—you realize it's part of growing up."
"Everybody is going to go through hard times. It's a part of life. I think the hardest part to get to is that point of asking for help or reaching out to other people and being honest with yourself," she added candidly.