It’s War! Gigi Hadid ‘Furious’ Kendall Caught Making Out With With Her Brother

Gigi Hadid is furious with BFF Kendall Jenner for hooking up with her younger brother Anwar, RadarOnline.com has learned exclusively.

“He’s a cocky kid and telling Gigi to butt out, but she’s very protective and knows he’s only going to get hurt in this situation,” an insider told RadarOnline.com.

As RadarOnline.com revealed, Anwar, 18, has been busy hooking up with the 22-year-old Jenner since her relationship with basketballer Blake Griffin crashed and burned. But as Anwar becomes more and more smitten with his new model fling, friends warn that Jenner is just having fun.

“Kendall’s not interested in anything serious, she’s just on this weird mission to play the field,” the insider revealed. “Gigi hates seeing her baby brother sucked into this weirdness.”

The hookup has already complicated Anwar’s relationship with longtime girlfriend, Nicola Peltz. But Jenner doesn’t seem to care, and only wants to continue her summer loving.

“This is a strange situation right now, which is only going to get worse with Ibiza and LA summer parties just around the corner.”

After Jenner and her new barely legal boy toy were spotted making out, RadarOnline.com exclusively learned that Gigi, 23, and sister Bella, 21, are “bothered” by the relationship. But that apparently doesn’t faze the Keeping up with the Kardashians star at all!

“Gigi’s told Kendall her feelings but only time will tell if she takes any notice,” the insider confessed.

Do you think Kendall is using Anwar for a summer fling? Or is this true love? Let us know in the comments section.