Multiple sources close to Kourtney and Quincy tell us this is strictly a friend zone transaction. Nothing more.

Kourtney Kardashian may hang with Scott Disick from time to time, but she's clearly on the market ... because we got her out on a date with Diddy's son, Quincy Brown.

The 37-year-old MILF was leaving Craig's in WeHo Wednesday ... where she was mum on sister Kendall Jenner's Pepsi fiasco, but gotta say ... looking good.