The Hills star, Kristin Cavallari dumps two-timing ex

[HMG] – With MTV’s intellectual vacuum, The Hills now having been canceled, the ‘stars’ are already looking for ways to extend their fame. And Kristin Cavallari is first out of the gate, with allegations her – now ex – boyfriend’s a louse.

As those able to watch ‘The Hills’ without opening a vein can attest, the 23-year old reality actress had been dating nightclub owner Sam Nazarian for several months. But while visiting one of Sam’s LA homes, Kristin gained a new friend;

“Kristin had left a ring at his house, so she went to pick it up last Thursday,” says a source. “She went to the bedroom and saw a girl in Sam’s bathroom. She knew right away what was going on.”

And just to confirm it, Kristin made a call;

“She called Sam but had the other girl talk to him, and he was so freaked out!” the gossipy girlfriend tells Radar. “He was expecting Kristin’s voice and instead got the girl he was cheating with.”

And to show you the size of IQ now in play, this was not even the first time Kristin found out Sammy was playing the field;

On March 20th she went shopping in Beverly Hills with a friend. For two hours she used the whole store as her personal runway, then went to pay for her haul.  And that’s where her fun ended;

“Another girl in the store was talking about how a ‘Sam’ had been hitting on her,” says the snitch. “Kristin said ‘Sam Nazarian?’ and the girl said, ‘Yeah, you know him?’”

The un-named informant then tells Kristin that Sam [allegedly] hits on every girl he can find;

“Kristin was really upset,” we are told. “She confronted Sam, but he talked her out of it, saying it was just gossip. But there’s no way he’s talking her out of the latest one — She dumped his ass.”

That’s the story we’re given. And if you watch The Hills, it might just have lowered your IQ enough to buy one single word…