Megan Fox is Engaged Again

UsWeekly

Megan Fox is engaged again!

On-again beau Brian Austin Green popped the question to Fox, 24, June 1.

"Yes, she is engaged," her rep tells Us.

But in all the excitement, the happy couple somehow lost the ring, sources tell Us Weekly.

"I saw her jumping up and down," a witness tells Us Weekly of the beachside proposal at the Four Seasons Hualalai hotel on the Big Island in Hawaii. "Later, I saw a half dozen staff sifting through the sand."

Alas, the 2-carat sparkler, which the pair picked out together from Excalibur jewelry store in Beverly Hills, remains MIA.

"Security and maintenance staff spent a couple of hours looking for it," another source tells Us Weekly. "No one found it."

Green, 36, and Fox -- who next stars in Jonah Hex (out June 18) -- began dating in 2004 but called off their previous two-year engagement in February 2009.

Could kids be in the future? (She is helping raise Green's 8-year-old son, Kassius, with his ex, actress Vanessa Marcil.)

"No one believes me when I talk about this, but I'm really maternal," she told W magazine earlier this year.

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Megan Fox: I Decided To Leave Transformers

(PEOPLE)--Megan Fox is seeking to transform rumor to fact.

The actress is slamming speculation she was booted from the third installment of the Transformers action film franchise.

“Megan Fox will not be starring in Transformers 3," reps for the actress, 24, tell PEOPLE. "It was her decision not to return. She wishes the franchise the best.”

Citing unnamed sources, Variety reports the studio and the film's director, Michael Bay, intend to cast another actress as star Shia LaBeouf's love interest to move the story in a different direction.

Shooting for the film, slated for a July 2011 release, is expected to kick off this summer in locations across the U.S.

Fox, meanwhile, is prepping for the June 18 release of Jonah Hex, an action film she stars in opposite Josh Brolin, John Malkovich and Will Arnett.

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