Jennifer Aniston and Justin Theroux became engaged in August

Jennifer Aniston is reportedly keen to marry Justin Theroux in a southwestern-style ceremony at Julia Roberts' New Mexico home.

Julia's niece Emma Roberts told Jennifer, 43, about the luxurious villa in Taos when they were shooting new film We're The Millers together.

'Julia's gorgeous estate in New Mexico is the type of setting Jen wants. She's crazy about the place,' a source tells a US magazine.

'[Emma] has offered to give Jen a tour of her auntie's ranch to see which vista would provide the best place for a tent, and which giant old Chilean mesquite tree would provide the best backdrop.'

Jennifer became engaged to Justin, 41, on his birthday two months ago and they've since been busy making preparations for their big day.

They've been looking at dates in December as well as Valentine's Day, while 44-year-old Julia's estate is free this autumn.

However, a source tells Gossip Cop that Jen's New Mexico wedding plans are 'completely untrue'.

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Anna Duff