Forget something, Lindsay Lohan?

The 28-year-old Mean Girls star gave passersby in Monte Carlo, Monaco, quite an eyeful Thursday as she strolled through the street braless, wearing a periwinkle, loose-fitting halter top that showed off some side boob, paired with black skinny jeans and white and navy-striped, platform open-toe heels and blue aviator sunglasses.

She was accompanied by a female friend and was seen walking with a cigarette in her hand. The two were spotted shopping at a Louis Vuitton store and sitting at a cafe and enjoying drinks and ice cream.