Kim Kardashian West is Rolling Stone’s latest cover girl, but it’s what she said during her interview that really has people buzzing. The 34-year-old reality star opened up about younger brother, Rob Kardashian. The former "Keeping Up With the Kardashians" star has been noticeably withdrawn from the public eye for years.

Kim, 34, told Rolling Stone her brother’s situation was “not that mysterious.” She claimed his decision to avoid leaving the house and appearing on the Kardashian-Jenner family's hit TV show has everything to do with his weight gain saying, “He feels uncomfortable being on the show, and that’s OK.”

The “Selfish” author didn’t shy away from the truth when discussing what he’s been up to in the meantime either. Kim says she thinks Rob, 28, spends his days with his friends. “Do I think he smokes weed, drinks beer, hangs out and plays video games with his friends all day long? Yes," she said. She noted that, while it’s not the most ideal lifestyle, it could certainly be worse. “It’s not more like hookers and meth at the Ritz,” she joked. “No, no. Or he’d be skinny.”

The expectant mother of one has always taken a tough love approach with her brother, urging her family to do the same. During a Season 10 episode of “KUWTK,” Kardashian matriarch Kris Jenner attempted to organize an intervention for her son. The 59-year-old attempted to rally her other children in support, but Kim wasn’t buying it. Instead she suggested that maybe it was time to “give it up,” adding that up until that point they had made “his life so easy.”

Rob has been dealing with weight gain, as well as anxiety and depression, for quite some time. In April, Kris said Rob had gained more than 100 lbs. in the past year. The sock designer initially blamed his weight gain on his breakup with singer and actress Rita Ora in December 2012. Despite several attempts to shed the pounds and get help with his depression, Rob continues to struggle. Because of his issues he has opted to avoid the public and is seldom heard from, save a few odd outbursts on social media.