That would be good for a Naked Experiment day.
Though you need to decide whether the participants try to match the prompt or the result.
Example:
A man and a woman meeting first time on a naked experiment day have undressed each other in a small room. They stand, with their clothes on the floor beside them, watched by two seated clothed men and two clothed women
That’s not quite what it generated:
She hasn’t taken his clothes off and they look more like professional photo models than strangers getting naked together for the first time.