Sex Pollen

Refers to stories in which some sort of external influence (often the pollen of a plant, hence the name, but may be any kind of drug, magic, or mind-control) causes the characters to spontaneously engage in sexual relations, often oblivious to gender or sexuality or even propiety. Is a classic sci-fi trope. Originated in various classic Comics and Science Fiction fandoms, but has since been procured by several other kinds of fandoms as well.