Who needs a clothing line when you can combine business with PLEASURE in the burgeoning marijuana industry? According to TMZ, Kim Kardashian’s notorious ex is slapping his name (and investing his $$) in a company that will feature joints named after Brandy’s lil bro.

Via TMZ:

Ray J is making a major investment in his new legal marijuana biz … and he’s kicking off his very own weed venture by hawking joints named after — who else — himself!!!

Our Ray J sources tell TMZ … he’s already poured in $5,000,000 to fire up a cannabis company in Cali, and the first rollout will feature pre-rolled joints, dubbed, “Ray Jay’s.”

Ray J ain’t playing around when it comes to his plants … he’s already got a greenhouse stocked with rows and rows of dank, and the flowers look like the stickiest of the icky!!!

The company is called William Ray LA, and Ray J’s assembling a top-notch gang of ganja experts specializing in growing, branding and marketing herb … and he’s going to put his stamp on the biz with his own personal knowledge and expertise. See, smoking pot has tons of benefits!!!!