According to new rumors, Kris Jenner is pressuring her son Rob Kardashian to drop 70 pounds before Kim Kardashian's summer wedding. In a report by the National Enquirer, sources revealed that Jenner reportedly gave Kardashian a weight loss ultimatum.

The 26-year-old, who is reportedly around 260 pounds, has been considering going under the knife in order to meet Jenner's deadline.

"Rob hates gyms," the source said. "But he's under strict orders from Kris to lose 70 pounds before Kim's wedding to Kanye West this summer. Rob figured that getting his stomach stapled is the only way to meet Kris' deadline."

"This procedure is a major operation," another source added. "But being the ugly duckling in the family has affected Rob deeply. Everyone's worried about him."

It's been said that Kardashian's weight struggles started after his split from British singer Rita Ora in 2012. The two didn't have the best breakup; Kardashian took to Twitter following the split to accuse the "Radioactive" singer of cheating on him with "nearly 20 dudes."

"Rita totally ripped Rob's heart out," the source said. "He wanted to marry her."

Earlier this month his weight gain was in the headlines when it was reported by Star magazine (via the Daily Mail) that Jenner had asked her son to go to fat camp. Sources reportedly told the magazine that the 58-year-old matriarch told Kardashian that he was an embarrassment to the family.

"Rob is fatter than ever, and Kris finally flat out told him he's an embarrassment to the family, "a source told Star. "She called him a fat slob and said he's losing out on business opportunities because no one wants someone as huge as him representing their products."

The report also said that his sisters, Kim, Kourtney and Khloe Kardashian, were also urging him to hit the gym and lose weight.