They are enjoying a romantic skiing break, where they have been snuggling up by the fire in a chalet, watching Christmas movies in between tackling extreme sports on the slopes.
"Just had a relaxing deep tissue massage. Now in bed with River Viiperi cuddling by the fire watching 'Home Alone'. Love Christmas movies," Paris tweeted.
"Going to bed, Getting up early to go skiing and snowmobiling. Can't wait for another adventurous day in the snow. Sweet dreams everyone," she further posted.
The couple who is spending their first Christmas together are keeping their fans updated by tweeting their every move and posing for a series of holiday snaps in the idyllic resort.
The 31-year-old came well prepared for the trip, stocking up on a whole new wardrobe of top-of-the-range ski-wear before jetting off to the mountains.
Photos: Katrina Kaif, Shamita Shetty at Mumbai airport
Photos: Varun Dhawan, Alia Bhatt promote 'Badri...' on 'Dil Hai Hindustani'
In pictures: 15 facts about kissing that will surprise you
Photos: Shahid Kapoor and Mira Rajput at cafe in Bandra
Photos: Deepika Padukone, Neha Dhupia and Soha Ali Khan at event