Margot Robbie

Margot Robbie on the set of The Wolf of Wall Street in New York (9/25)

It was rumored last month that Leonardo DiCaprio was banging his Wolf of Wall Street co-star Margot Robbie, and now the New York Post says Leo was seen leaving Margot's apartment building early in the morning last week. Maybe they were studying lines . . . nakedly.

Leonardo DiCaprio had been rumored to be getting cozy with his beautiful "Wolf of Wall Street" co-star Margot Robbie, but sources tell us they may be getting more serious. A spy spotted DiCaprio at Robbie's apartment building in Union Square on Thursday night, and Leo was seen leaving the next morning. "He stayed overnight," a source told us.

Robbie's rep didn't get back to us. A rep for DiCaprio said, "That didn't happen. Leo worked late and stayed home."

Sure, things are getting serious . . . for Margot. While she's making sweet, sweet love to her (fingers crossed) future husband, Leo is thinking about the night before when he went balls deep into another co-star not named "Margot." I just hope that Margot doesn't take her future dumping personally. Once you've accepted DiCaprio's DNA all over your face and chest, you've instantly become an elite member of whatever it is that you do. Case in point: Bar Refaeli. Before Leo discovered her vagina, she was selling falafel outside a Tel Aviv McDonald's. Now she's the best thing to come out of the Middle East since Jesus (some would argue that she's been No.1 for a while). Take comfort in that fact, Marge. Your salary will triple after Leo changes his locks.

*25 Margot Robbie pictures total in the gallery:

Margot Robbie shopping in New York (10/3)

Is Leo DiCaprio now banging his Wolf of Wall Street co-star Margot Robbie? Sure, why not. From the New York Post:

Newly single Leonardo DiCaprio headed to Las Vegas [last] weekend to celebrate billionaire businessman Jho Low's birthday -- and was spotted with his "The Wolf of Wall Street" co-star Margot Robbie.

DiCaprio, who just broke up with Victoria's Secret supermodel Erin Heatherton, and stunning blonde Australian actress Robbie, who plays Leo's love interest Naomi Lapaglia in the Martin Scorsese-directed movie, appeared close at the party at the Wynn Las Vegas on Saturday night.

One witness said, "There looks to be some strong chemistry between Leo and his leading lady. They spent a lot of time at the party together."

How gentlemanly by Leo to give Margot a chance even though she hasn't walked down a runway in her life. Maybe if Margot gets real lucky, Leo will let her give him a blowjob on the first date. *fingers crossed*

*20 Margot Robbie pictures total in the gallery:

Margot Robbie

Actress Margot Robbie (Pan Am) at a New Year's Eve party at TAO nightclub in Las Vegas (12/31)

*20 Margot Robbie pictures total in the gallery:

Paparazzi photos from Friday, August 12

Jennifer Love Hewitt at WWE's SummerSlam Kickoff Party at The Andaz Hotel in West Hollywood (pics start here)

Nina Dobrev and Ian Somerhalder on the set of The Vampire Diaries in Decatur, Georgia (pics start here)

Emmanuelle Chriqui at an afterparty celebrating the new cast of the off-Broadway production of Love, Loss and What I Wore in New York (pics start here)

UK reality star Josie Gibson (Big Brother) on vacation in Marbella, Spain (pics start here)

Nicole Richie arriving at The Viper Room in West Hollywood (pics start here)

Former Miss Universe Jennifer Hawkins at the Myer Department Store Spring/Summer 2011 season launch fashion show in Sydney (pics start here)

Rose McGowan at the premiere of Conan the Barbarian at Regal Cinemas L.A. Live (pics start here)

Ellen DeGeneres and Portia de Rossi leaving a Starbucks in Vancouver (pics start here)

Angelina Jolie arriving by helicopter at Ham Polo Club in London (pics start here)

Margot Robbie on the set of Pan Am in New York (pics start here)

Olivia Wilde arriving at Claridge's Hotel in London (pics start here)

Christina Milian leaving The Little Next Door restaurant in West Hollywood (pics start here)

Kellan Lutz promoting a new clothing line at Norstroms at The Grove in Hollywood (pics start here)

Amy Adams leaving Toys"R"Us in L.A. (pics start here)

*124 paparazzi pictures total in the gallery: