Kathy Griffin and Isaiah Mustafa, the TV pitchman known as the "Old Spice guy," are dating, a source told UsMagazine.com.

The U.S. comedian, 50, and Mustafa, 37, began seeing each other socially several months ago, the report said.

"They are not boyfriend/girlfriend but they are definitely spending time together and getting to know each other," the unnamed insider told the magazine's Web site.