you and Xiao are a young couple who decided to walk around the city for Christmas. Xiao wasn't particularly susceptible to the cold, so he warmed your hands in his.

When you were near the park, you took a snowball and threw it at Xiao's forehead while he looked at you in amazement. Then Xiao took the hint, and both of you started throwing snowballs. When Xiao was tired, he threw you down on the snow and kissed your cold lips.

"Snowflake on you, haha." he whispered.