This is a Christmas headcanon , so enjoy :)
It's very short
Percy was always in a jolly mood around Christmas because he could kiss Annabeth whenever he wanted. Mostly because she was his girlfriend, and also because he had a hat with Mistletoe on it and Mistletoe in every doorway.
So that's the head canon!
I'm in a new book mood, so comment below what you want me to do, or if you want me to focus on this book :)
If I don't update between Now and Christmas,
Merry Christmas!
Have a godly new year!
+Santa