It's become such a common occurrence that the running joke in China -- that scorned mistresses have done more to root out corruption than any government anti-corruption effort possibly could -- isn't really much of a joke at all.
Simone De Beauvoir (Fictionally) Murders Jean-Paul Sartre's Lover
When French philosopher and playwright Jean-Paul Sartre "proposed" to also French philosopher and novelist Simone de Beauvoir, he made the terms quite clear. "What we have is an essential love; but it is a good idea for us also to experience contingent love affairs." And so the two entered into a pact much more suitable to two high-thinkers than anything so stifling as marriage: They never lived together and had an open relationship, the only rule being that they would tell each other everything. Everything.
While that sounds ... unconventional, their actual arrangement flew right past unconventional and landed somewhere on the far side of Fuckedupsylvania: Beauvoir groomed her teenage students by introducing them to the life of an intellectual, taking them out to cafes and having long discussions on philosophy (also, lesbian sex). She then handed them over to Sartre, who would try to seduce them -- essentially, she was pimping for him. If you're wondering why a famous French philosopher would need help scoring trim, well, Sartre was notoriously ugly, had appalling personal hygiene, and was unabashedly awful in the sack. Beauvoir made herself a real catch, is what we're saying.
Here they are with Che Guevara, creating the most douchey freshman dorm poster imaginable.
It was all fun and games until one of their conquests got under Beauvoir's skin. When she introduced 17-year-old Olga to Sartre, Olga rejected his advances. Sartre became obsessed with her and pursued her relentlessly for two years ... which must have been squirmingly awkward for Olga, seeing as he was also her financial guardian and teacher. Sartre was jealous of Olga's preference for Beauvoir, and Beauvoir was in turn jealous of Sartre's preference for Olga. She would later write, "The agony which this produced in me went far beyond mere jealousy."