According to a UK newspaper, Leonardo DiCaprio's girlfriend, Bar Rafaeli, is pregnant. The news follows rumors last week that Leo had proposed to Bar--whom he's been dating for 15 months. Friends of the Israeli model claim she is due to give birth sometime in late Autumn. The Daily Mirror reports:

An excited Leo has said he can't wait to be a dad, especially since his best mate, Spider-Man star Tobey Maguire, became a father last November. Our spy reveals: "He dotes on Tobey's little girl Ruby and has been asking him all about what it's like being a dad."

There was speculation last month that 21-year-old Bar might be pregnant when she wore a loose-fitting top to a bash at Jet Nightclub at the Mirage Hotel and Casino in Las Vegas. She also stuck to mineral water all night. (Source)

Leonardo DiCaprio, you're dead to me. *tears down Titanic poster hanging above bed*

*Thanks Liz for the tip ... and for being so damn sexy.

Some better pics (read: bikini) of Bar after the jump...