Lindsay Lohan's latest BF is British party boy, Calum Best, but her pals are saying that he's the worst. "This isn't a serious relationship," a friend tells the New York Daily News. "He's a piece of s-. He's a wannabe celebrity. Lindsay trusts people until they hurt her." That didn't stop L.Lo from sucking face with him at Wednesday night's Nylon magazine party. Scandalous!

Who do you think would be a good match for Lindsay? Sound off now!