Miley Cyrus (Photo : Reuters)

Engaged Miley Cyrus denies rumors of having a problem with finance Liam Hemsworth's relationship with co-star Jennifer Lawrence and says she won't let jealousy ruin their relationship.

Miley Cyrus just can't stop bragging about her perfect relationship with finance Liam Hemsworth. The former Disney star takes every opportunity to let everyone know how much in love the two are and that she won't let jealousy spoil their relationship. Cyrus reveals that she has no problems with Hemsworth hanging out with his sexy co-stars; especially "Hunger Games" co-star Jennifer Lawrence.

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''People will say, 'Oh Liam is so close to Jennifer Lawrence [Hunger Games],'' she told Marie Claire. ''Well yeah, they just shot a movie together! He's supposed to ignore her because she's a chick? I could be standing next to a guy who is wearing a rainbow-colored shirt that says, 'I'm gay' and people would still write, 'who is that guy with Miley' It's all bulls**t. Luckily, neither one of us is super-jealous. We know each other and would never do anything to hurt each other.''

But Cyrus also admits that the relationship wasn't always a bed of roses

''Liam and I have a really good relationship,'' she said. ''It took breaking up once or twice because I was young and immature and wanted to do thing I hadn't gotten to do. He was old, so it was like he'd already been through school. At some point you realize these people you're hanging out with are your 'party friends' they're not going to give a sh*t about you in 10 years.''

Earlier reports, however, had a different story to tell. A source told Grazia magazine, "[Miley feels] threatened by Jennifer's career and confidence. Jennifer seems to have replaced Miley as Hollywood's It girl. And now Miley seems terrified she'll replace her as Liam's girlfriend too. That's when she started working out so much and the weight dropped off. Miley's had to grow up fast and I guess she's worried her success could all end tomorrow. She's barely sleeping. It's very sad."

And that wasn't the only incident. Cyrus was not very pleased when Emma Roberts walked onto the set of "Empire States" and bragged about being single and ready to mingle. Roberts plays the love interest of Hemsworth in the upcoming film and Cyrus reportedly was not very happy with the on-screen canoodling.