The Oscar-winning actress was photographed kissing the 21-years-older Aronofsky on Wednesday during a NYC dinner date.
People reported last month that the two had become romantic after working together on an untitled drama scheduled for release next year.
“They’ve been hanging out and are casually dating,” a friend of the actress told the magazine.
Aronofsky is best known for movies such as Black Swan and The Wrestler. He’s also the former husband of another of Hollywood’s leading ladies, Rachel Weisz, with whom he shares 10-year-old son Henry.
Lawrence’s list of exes include Coldplay lead singer Chris Martin, her beau for about a year beginning in August 2014, and her X-Men: First Class co-star Nicholas Hoult, whom she dated from 2011 to 2014.