From Harry Potter and the Half-Blood Prince
[after telling Harry to close his eyes, Ginny hides his book somewhere in the Room of Requirement, then comes back, and gives him a soft kiss on the lips
That can stay hidden up here too, if you like.
[a short time later, Harry is walking down the hallway, in a daze. Ron appears beside him
So, did you and Ginny do it?
Did you hide the book?