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Paris Hilton and boyfriend River Viiperi jetted back to L.A. Sunday to spend Christmas at home after a week-long ski trip in celebrity hotspot, Aspen.

Queen P and her beautiful boy were all smiles after their romantic trip where they stayed in a $2000/night suite at the Little Nell -- the most luxurious hotel in the chic Colorado ski town.

You might think Paris would kick her feet up and sip hot chocolate all day, but nooooo .... this heiress digs into the powder on the ski runs and tears it up with River on the snowmobile trails! Check out this adorable pic of the couple during their last, adventurous day in Aspen: