you and dean have been a couple for quite some time, but you were also in an secret relationship with sam. you both hid it pretty well, but one day..
you met with sam and dean, since they were best friends and brothers and you wanted to do something as a trio. you and sam came a bit late because of 'homework'. as you three walked, sam mentioned something.
"your lipstick." he pointed out, and that got deans attention.
you took out your phone and looked at your reflection.
"oh." you chuckled and adjusted it. "i wonder how that happened."
"yeah, i wonder." sam said with a smirk, looking at your lips.
you looked at dean, who looked at the both of you with a expression that said, "seriously?"
your eyes widen slightly when you noticed what sam just said, and that dean found out.