Rob Kardashian has been slowly returning to social media

Credit: Steven Lawton/WireImage

First, the rapper fueled rumors that Scott Disick – the ex of Kourtney Kardashian, whose sister Khloé Kardashian he dated on and off over the past year – is appearing in his next music video. And on Wednesday, Khloé’s brother Rob Kardashian posted an Instagram of Montana, 30, and director Carlos Suarez hanging out on a driveway, leaning on their luxury cars.

“Wolfpack,” Rob, 28, captioned the photo.

The reclusive reality star caused a stir with another Instagram on Wednesday, this one of Chris Brown‘s ex-girlfriend Karrueche Tran texting him a selfie. “I like when she sends me pictures,” he originally captioned the shot, changing it to clarify they have been friends since high school before deleting it entirely.

Rob laid low after battling depression and gaining more than 100 lbs. over the past few years, but he’s slowly been returning to social media and started exercising again this summer.

“Never worry about Rob,” his trainer Gunnar Peterson told PEOPLE.

Khloé, 31, is now dating basketball player James Harden.