Stephanie Pratt is getting candid about her days on reality TV.

Stephanie Pratt Hopes She & Boyfriend Josh Can Emulate Heidi Montag & Spencer Pratt's Relationship

In a new tell-all book, which is expected to hit stores later this year, the fomer star of MTV's The Hills will open up about her life in the spotlight, drugs, rehab and more.

"It's coming out later in the year, and it's about me growing up," the 28-year-old Pratt revealed to FHM Magazine, via a Daily Mail report on Monday. "It's got stuff about family, getting everything I've ever wished for, my descent into drugs and rehab and arrests. Then stuff about The Hills, Big Brother, Made In Chelsea, my brother, guys… I've been very honest."

Spencer Pratt Claims He Lost His Mind While Filming 'The Hills'

Pratt began starring on The Hills as a friend of Lauren Conrad and the sister of Spencer Pratt, husband to Heidi Montag. On the show, Stephanie's friendship with Conrad, who was on the outs with Montag, became a major story line.

After her time on The Hills, Stephanie went on to appear on Celebrity Big Brother and Made In Chelsea, both of which air in the UK. She also appeared on a recently aired episode of Millionaire Matchmaker, during which Montag and her brother attempted to help her find love.

During her Hills days, Stephanie admitted to struggling with alcohol, and received a DUI charge in 2009. At the time, TMZ reported Stephanie had taken two breathalyzer tests, the first of which read 0.08, the legal limit in California, and the second of which read 0.09.

Stephanie's upcoming book doesn't yet have a title or release date.

Tags: stephanie pratt Reality TV tell-all The Hills MTV Book