You were having a sleepover at your bestfriend's house. Bill is reading a book while you examine his face, you suddenly ran your thumb through his lips and said "Your lips are so dry.. Here, use this." You said and handed him your lip balm.

"Nein, that probably has some color." Bill says.

You applied the lip balm on your lips to prove him that it's colorless.

Bill watches you putting on the lip balm and as soon as you finished, he suddenly kissed you.