Entourage star Adrian Grenier is off the market!

Life & Style can exclusively reveal that Adrian's new girlfriend is 26-year-old Sarah Austin, star of Bravo's new series Start-Ups: Silicon Valley

Adrian, 36, met Sarah several years ago, when she interviewed him on the red carpet in San Francisco for his documentary, Teenage Paparazzo. The two remained friends ever since, but only recently did things go from friendly to romantic.

"The love connection came later," a friend tells Life & Style. "Things have gotten pretty serious in the past month. Right now it's long distance because she lives in San Francisco and he lives in LA, but they are making it work."

So who is Sarah?

Sarah first gained notoriety when she was pegged as the Internet's "first lifecaster" by broadcasting her every move for the world to see online and has gained a following through various web series and blogs. She majored in business at the Dominican University of California, but her latest claim to fame will likely be her biggest move yet — starring in the Bravo series Start-Ups: Silicon Valleywhich premieres on Nov. 5.

Although Sarah and Adrian have only been dating just more than a month, the couple is already planning a trip to New York together soon.

"They share a lot of mutual friends," the friend says. "It was only a matter of time until it happened."