The Big Bang Theory star shared a few photos of the couple celebrating the Holidays on Instagram, and from the look of it -- and the captions -- the two had a blast.
"1st Christmas together @ryansweething :)" the 28-year-old actress captioned one of the images where she is seen hugging Sweeting next to a Christmas tree.
The next day, she added a follow up picture telling her fans how the festivities went.
"1st Christmas together! Killed it! @ryansweething," Kuoco wrote on the caption.
Cuoco and Sweeting got engaged in September after three months of dating.