Kim K 'cuts out step bro'

Kim Kardashian is reportedly "beyond annoyed" her step-brother embarrassed her online.

Burt Jenner, son of Kim's mom's husband Bruce Jenner, recently uploaded a snap onto Instagram of a T-shirt comprised of photos of the reality star crying. Fans were quick to applaud the 35-year-old's humorous move, but it's thought Kim doesn't see the funny side.

"Kim is beyond annoyed. She called stepfather Bruce Jenner as soon as she saw it but he hung up on her and told Kim he'd speak to her when she had gained some perspective," a source told British magazine Closer. "Her mom Kris is staying out of it."

It seems Kim's sibling Khloé is supportive of the decision to "cut off Burt". However, the other sisters in the clan are said to think the brunette beauty is over reacting.

"Her sisters Kourtney, Kendall and Kylie have all told Kim she's blowing things out of proportion," the source added. "They keep telling her it was just a joke. But Kim doesn't see it that way."

Burt is the eldest of Bruce's children from his previous marriage, which includes former The Hills star Brody. Despite Kim and Burt having little contact of late, it seems this move could cause trouble amid the tight-knit family.

"This is definitely the most divided this family has been in years and it's just getting worse. Kim hadn't even seen Burt since last year and he wasn’t invited to her and Kanye [West's] wedding [in May]," the insider continued. "Burt isn't too bothered about the fallout, as he likes to stay out of the limelight, but he doesn't want to miss out on family events as he's close to Kylie and Kendall and doesn't want to lose contact with them."