How about two versions of the same short sex scene or paragraph, from different POVs?
How about a sex scene with the POV being that of someone who observes but does not participate?
How about a scene consisting entirely of a character undressing himself or herself while a partner watches?
How about a scene set in a time and place the author has never written in before?
How about a scene which must use three specific plot aspects, settings, situations, characters, or props, decided by our mod, such as [wedding night, Texas, lingerie], [couple in their seventies, bad temper, ham sandwich], [gay couple, the ocean, hot coffee], or [a pet, an important work decision, handcuffs]?
How about super short, with a really low word count, like 100 or 150? A real challenge to windbags like me.
How about a bookended story in which the first sentence is identical to the last?
Maryn, whose mind sometimes works