Mary-Kate Olsen dating shoe designer Seth Campbell?

New York (ANI): Actress Mary-Kate Olsen has been revealed to be dating shoe designer Seth Campbell. According to Us magazine, Olsen, 24, has gone public with the new man in her life.

“Their relationship is fairly new," the New York Daily News quoted a source as telling the magazine. “They"ve been able to have a few dates on the down low. He"s a downtown kind of guy, likes to party every now and then," the source added.

Though a rep for the actress has denied the two are dating, the pair were reportedly spotted making out 'all night' at a mutual friend"s birthday party at NYC"s Lavo on February 16. According to Star magazine, Olsen is 'falling hard' for Campbell, although he is said to be 'a bit overwhelmed about moving so fast – but he"s very interested'.