Nakedness. Nobody ever gets tired of it. The exact reasons for being naked are irrelevant, for inevitably the time must come when we must end this plot. Cast aside the foolishness of a naked person traipsing around the universe gay as a chickadee, and finally have them safely at home where the nakedness can bother no one and so- This trope is based off an old story, as Snopes explains here and here. The Reveal of the surprise guests almost always ends the story- very rarely does the party happen and then we see what happens next. Examples of Birthday Suit Surprise Party include: