HOT-TO-TROT KRIS TIRES OUT BOYTOY!

Nonstop nookie leaves beau beat

- 

SEX-MAD Kris Jenner has boytoy Corey Gamble complaining he can’t keep up with her unquenchable appetite for between-the-sheets action!

“A plotline on the family’s TV show about Corey’s supposedly cheating on Kris couldn’t be further from the truth,” an insider snitches to GLOBE.

“Corey is actually a very calm, low-key guy who doesn’t have anything like the physical stamina Kris would like — and it’s proving to be a problem!”