Selena Gomez is reportedly "freaked" that Justin Bieber may be falling for her "Spring Breakers" co-star actress Vanessa Hudgens, according to a report.

An insider told the National Enquirer that Bieber flipped for Hudgens while visiting Gomez during filming of the movie over the winter and early spring.

Hudgens, Gomez and Ashley Benson star in the film about a group of college girls who rob a restaurant to fund a spring break party.

"He was there to see Selena but he wound up falling hard for Vanessa. He couldn't stop raving about how smart, sexy and talented she is," an anonymous source told the National Enquirer.

According to the source, Bieber and Hudgens have been texting each other "secretly" since then.

Gomez reportedly "freaked" upon learning the news and now is "threatening to dump Justin unless he cuts ties with Vanessa," the paper claims.

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Hudgens, 23, is currently dating actor Austin Butler.

Justin and Selena have been dating since the end of 2010 but they went public with their relationship at the 2011 Oscars.

The couple seem in love with each other and are often seen vacationing together, hugging or kissing in basketball games. Bieber also admitted that his latest single "Boyfriend" was about Gomez.

In the song, the pop heartthrob sings "If I was your boyfriend I'll never let you go."

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Tags: Selena Gomez