Self Defense by ShevatheGun
After ten years as nemeses, Clara Kent could say with a relative degree of certainty that she knew all there was to know about Lex Luthor. But when a murder investigation into the death of her father derails Lex's presidential campaign, Clara's forced to reconsider. Now, marooned in an alternate universe, Clara and Lex must rely on one another to get home in spite of their history - both that which they share, and that which Lex has kept buried for a long, long time.
Read it here on AO3.








