Ray J and Kim K's Husband bump into each other - ON THE SAME PLANE!! Yikes!!!

Kim Kardashian's new hubby Kris Humphries and her alleged sex tape partner Ray J met on an airplane over the weekend -- and needless to say, they didn't hug it out.

The New York Post reports that Ray, who was seated across the aisle from the NBA star, tried to offer congratulations, but got the cold shoulder.

An eyewitness tells the paper, "Ray J said, 'Come on, you know who I am. I just want to say congratulations.' Then Kris, realizing he was cornered, said, 'Oh yeah, yeah, I'm sorry I know who you are.'"

Humphries then moved to another seat to avoid further awkward encounters.