4:17 PM PT -- Younes has taken to social media to clap back at the pics suggesting he was boo'd up with Jordan, saying she's nothing more than a friend. Looks like Kourt's sisters aren't buying it though. Khloe commented on his responses, saying she's "heard it all before" -- and Kim praised the pics from his "boys trip," adding a Pinocchio nose emoji. 

Younes Bendjima's relationship with Kourtney Kardashian has gone south ... and now, so has he -- heading to Mexico to bang hot senoritas and we've got the pics.

Check out Younes in Mexico Monday ... chasing around a smokin' hot non-Kardashian normie (who we're told is BFF's with Johnny Manziel's wife, Bre Tiesi). The woman is Jordan Ozuna, a former Hooters waitress who dated Tyga and Justin Bieber.   

Our sources tell us ... it was Kourtney who pulled the plug on the relationship -- but, judging by the rebound pics, Senor Bendjima ain't too broken up about it. They've also both unfollowed the other on Instagram.

Remember -- Bendjima took a lot of heat for a nasty comment he left on a booty pic Kourtney posted last month -- but we're told it wasn't the reason for their split.

Kardashian and Younes started dating back in 2016 when she met the Givenchy and Balmain model at a bar during Paris Fashion Week, just before Kim's robbery.

The two were most recently spotted together on a trip to Italy with Kourtney's kids.

As for Kourt's baby daddy, Scott Disick ... he and 19-year-old Sofia Richie are still goin' strong ... and Richie turns 20 later this month.