Kris Jenner, the famed Kardashian matriarch, has reportedly given her longtime boyfriend, Corey Gamble, a surprising ultimatum: get in shape or face the consequences. The couple began dating in 2015, but sources say 42-year-old Gamble has let himself go, much to the dismay of 67-year-old Jenner.

"Kris is turned off by Corey's love handles and 'moobs,' but his unwillingness to change his sedentary lifestyle is just as unattractive to her," shares an insider.

Kris, who has recently shed over 50 pounds, has been diligently following a strict diet and exercise routine. Sources reveal that she's demanded Corey join her in her fitness efforts or risk their relationship.

"She's worked hard to lose weight, while Corey continues to consume carbs and calories without a care," says a source. "Kris has warned him that if he doesn't slim down by summer, she won't be seen with him at the beach—or anywhere for that matter."

The couple's once-sizzling romance appears to have cooled down significantly. "Corey's weight gain has made it difficult for him to keep up in the bedroom. Kris complains that he often falls asleep on top of her," reveals a source. "She's frustrated with his lack of stamina and having his 'moobs' constantly in her face."

Kris Jenner's ultimatum to Corey Gamble highlights the importance she places on health and fitness, not only for herself but also for her partner. Time will tell if Gamble heeds her warning and embraces a healthier lifestyle to save their relationship.