The bash was rumored to be their secret wedding — you know, the one she has incessantly insisted, while doing media rounds for "We're the Millers," that they didn't have time to plan?
But alas, the event was not the couple's walk down the aisle.
The timing was also perfect, since the day marked the one-year anniversary of Theroux's proposal to the actress. He proposed on his birthday last year, so the rumor mill had that occasion-eclipsing precedent to go on.
Maybe this was her way of saying, "Hey, thanks for proposing to me on your big day last year, allow me to return the favor."
The casual affair mostly took place on Aniston's massive patio and manicured grounds around her pool, Radar Online reported. Theroux and many of the guests reportedly wore jeans.
"Justin looked very happy and like he was really enjoying his birthday and showing off their new house," as source told E!.
Other guests surrounded a fire pit inside the living room, near a huge bar, and an indoor-outdoor deck was home to a buffet of finger foods and small appetizers prepared by Aniston's personal chefs, E! reported. The affair wrapped up around 11 p.m.
Happy birthday (not congratulations), Justin!
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