They've been engaged for almost three years now and fans can't help but wonder why it's taking them so long to get married. There's a new report that says Jennifer Aniston and Justin Theroux have pushed back their wedding plans for another six months as they just can't put aside the time to get married because of their busy work schedules.

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According to OK! Magazine on Tuesday, the two Hollywood stars have a lot of projects on their plates for the coming months. Theroux will be filming the second season of The Leftovers in April and will then jet off to Rome, Italy to shoot scenes for the highly-anticipated film Zoolander 2. Aniston meanwhile will be shooting Mean Moms, which was pushed back from last year.

Meanwhile, there was a rumor earlier this week that the couple might have canceled their wedding plans altogether because Theroux was caught "dirty dancing" with Hollywood starlet Selena Gomez during the Oscar after parties last month.

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According to Celebrity Dirty Laundry, eyewitnesses at Vanity Fair's Oscars party last month revealed that Aniston got quite upset when she saw her fiancé allegedly getting a little too close for comfort with the young singer and actress.

A source said, "Jen was in a booth showing her friend Amy Adams pictures on her phone of floral and seating arrangements for the wedding, when she looked up she saw Justin trying to dirty dance with Selena. Jen thought Justin was making a fool of himself by hanging on a girl young enough to be his daughter. Plus he was breakdancing and flailing all over the floor trying to impress Selena."

So far, neither Aniston nor Theroux have responded to the report.

Tags: Jennifer Aniston Justin Theroux