Ray J Says Get Over Making Sex Tapes Already, Including The Kardashians

Ray J has grown up a lot since his 2003 sex tape with Kim Kardashian ... and thinks everyone else should too.

We got the singer out Monday night at Craig's and asked if he'd seen Kylie Jenner's alleged sex tape with Tyga -- which turned out to be a hoax.

Doesn't sound like he's keeping up with the Kardashians all that much anymore ... but he does have some thoughts on the retro bedroom kink.