February 27, 2013 3:18 PM EST
Kate Upton Hated By Other Sports Illustrated Models? [PHOTOS]
Sexy actress and supermodel Kate Upton is definitely the "It Girl" of modelling industry at the moment
The 20-year-old blonde bombshell, whose racy Antarctic photo shoot landed her the much-coveted cover of SI's swimsuit issue for the second year in a row, is said to be hated by her fellow Sports Illustrated models.
Us Weekly cited an insider who said that "The SI models hate her. They are jealous, but Kate's also been a bitch to them."
In fact, relations are so chilly between Upton and the other models that they will not socialize with one another even when they're sitting just a few feet apart.
At a 1Oak party in Las Vegas on February 14, right after the cover's release, Upton kept to herself as the rest of the ladies chatted among themselves.
"She didn't interact with anyone," an onlooker says. "She wasn't friendly."
Kate Upton was recently named as the cover model of Sports Illustrated. She appeared in Sports Illustrated Swimsuit Issue first in 2011, when she was named Rookie of the Year. She posed as the cover model last year.
She braved the extremely cold weather and posed at the Antarctic with only a pair of bikini on. There were reports that the photoshoot for the cover endangered Kate Upton's health.
See the slideshow for the sexy photos of the voluptuous Kate Upton.