The Friends star went public with her new boyfriend earlier this year (11) and they have sent out a joint card to their loved ones this festive season.
The couple has also handed over an undisclosed sum to America's St. Jude Children's Research Hospital and an animal organisation to mark the holiday.
According to Laineygossip.com, the greeting reads, "We wish you and your family a holiday season full of happiness and joy. A donation has been made in your name to St. Jude Children's Research Hospital and Best Friends Animal Society. With warmth and love, Jen and Justin."