The eighth day of Geekmas… pucker up

It’s the eighth day of Geekmas and you can win… kissing disease! Well, an adorable kissing disease plush microbe (isn’t it cute?).

To win, solve this riddle in our Facebook competitions app:

What am I? Some say I’m a parasite but I say too harsh and misunderstood. I like to think of myself as a Yuletide embellishment who grows on others to bring joy to many.

Best of luck!