You slip into the room, and turn towards the door, to close it as quietly as possible. The door closes with a slight "clunk", and you think you might have heard something behind you.... Your back is still towards the inside of the room, when a male voice asks "Huh, got lonely did you Red?" You go rigid, realizing that you're in the wrong room! The voice continues, "Well, why don't you slip out of that dress, and in between the sheets here where it's warm?"
Oh oh... this is not what you had in mind! This guy wants you to sleep with him! There's really only a couple of things you can do.
"Oh, sorry! Wrong room!" and dash back out whence you came, and hope he doesn't raise a ruckus.
Stay the night (or at least an hour or two) here.