Beauty is pain!
The reality star posted a Snap of her legs after the event, and they looked like an annoyed cat had gone on the attack.
It ain't easy being a boobtastic hottie with two SI covers!
Just ask Kate Upton!
According to reports, the other Sports Illustrated Swimsuit Issue models apparently HATE the boobalicious one and AVOID her at all costs!
"The SI models hate her. They are jealous, but Kate's also been a bitch to them in the past."
While celebrating the launch of the issue at 1Oak nightclub in Vegas on Valentine's Day, Kate reportedly sat away from the other girls and didn't speak to any of them.
An onlooker noted:
"She didn't interact with anyone. She wasn't friendly."
It's a sucky situation, if true, but we're sure the 20-year-old can find solace in her piles and piles of cash.
Hundred dollar bills are great for wiping away tears!
[Image via WENN.]