Considering he's effed half her friends, it's pretty scandalous!
"Lauren and Brody have an ongoing relationship," claims a source. "And she's spoken about it with Whitney a lot, on camera and off. She's definitely not going to be happy to hear that the two were getting so comfortable, especially when she wasn't around."
Onlookers claims that Whitney couldn't keep her eyes off him. Granted, he is pretty hawt!
"They didn't come together but Whitney ran over to see him the second he walked in," said a partygoer, adding that the two "stayed together for much of the evening."
Yet, they did leave together!
"Brody has gotten around that crew of girls," the source continued. "And although it makes for good TV, MTV didn't put him up to it. That's just how he is."
[Image via WENN.]