Leonardo DiCaprio Vacations with Bikini-Clad Girlfriend Erin Heatherton in Hawaii (PHOTOS)

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Love was in the air this Fourth of July when Leonardo DiCaprio, 37, and his girlfriend Erin Heatherton, 23, hit a local beach in Hawaii.

Though the Django Unchained actor — who was sporting longer locks and scruffy facial hair — was covered up in a casual tee, his supermodel sweetheart was showing off her signature figure in a skimpy bikini as they packed on the PDA with lots of hugs and kisses.

It looks like things between these two Hollywood hotties are definitely getting serious.

In June, DiCaprio and Heatherton were spotted getting very touchy-feely at New York City’s Candela Candela before the J. Edgar star fulfilled one of her recent wishes: biking all over Manhattan.

On June 14, DiCaprio took his ladylove on a romantic bike tour for two around the Big Apple.

“I have to get a bike,” Heatherton told Celebuzz when we caught up with the Victoria’s Secret Angel in March. “I have to go biking here because it’s so beautiful. My favorite part of the city is the West Village, and I decided I want to bike all around Manhattan and see how that goes.”

Do you think these lovebirds are in it for the long haul? Sound off in the comments, below.

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