Kylie Jenner’s Twitter feud with boyfriend Tyga’s former lady love Blac Chyna may get real as the young Jenner and sister Kendall are both planning to attend the MTV Video Music Awards. Chyna and her close friend Amber Rose will also be at the event this Sunday. Kylie and Kendall’s sister Kim Kardashian is expected to keep them away from trouble at the awards, which is being hosted by Miley Cyrus.

"Kim is going to watch out for her little sisters, Kylie and Kendall," a source told Radar Online, adding that she is "on high alert about Amber Rose and Blac Chyna."

Kardashian will be present with her husband Kanye West, who will be receiving this year’s Michael Jackson Video Vanguard Award to honor his contributions to music videos.  However, the report says that she will be keeping an eye out to ensure her sisters are safe.

"Kanye is going to be the star that night, but Kim knows that Amber and Blac Chyna are always trying to use her family, and especially her sisters to get attention for themselves," the source told Radar Online.

"Kendall and Kylie don't care about Amber or Blac Chyna. They think they're ridiculous and obsessed with them," the source reportedly said. "Kim knows they're going to be trying to cause trouble because they just can't deal with the fact that Kylie is dating Blac's baby daddy Tyga," the source told Radar, adding: "Kim has told security that she wants them to be on the lookout for any trouble that starts.

"She doesn't put anything past Amber Rose or Blac Chyna," the source also said, according to Radar Online, adding: "She (Kim) knows they're both over 18 and can take care of themselves but she thinks they sometimes can be naïve about life and she doesn't want them to get hurt."

The report also added that Kardashian is trying her best to stop Rose and Chyna's show on MTV. A report by Hollywood Life Wednesday also said that Rose and Chyna were telling their friends that their show will bury “the Kardashian’s show for good.”

The two also plan to involve their kids in the show and get their former boyfriends -- Rose’s ex Wiz Khalifa and Chyna’s ex Tyga -- to do cameos. Tyga and Chyna have a two-year-old son, King Cairo, together. Chyna has been taking digs at Kylie ever since the teenager started dating Tyga, and the two have been feuding on Twitter ever since.

"It's a huge event and Kim believes she and her family are the biggest stars there," the source said, according to Radar Online, adding: "She wants to make sure that Amber Rose and Blac Chyna don't start anything with her family and she hopes that they can act mature."