This does seem like an impossible situation but it can and has happened in real life, not to me, but there have been cases of people starting relationships only to find out their parents are marrying making them step-siblings or children of divorces going out and through family gathering their parents also getting in relationships.
This does seem like an impossible situation but it can and has happened in real life, not to me, but there have been cases of people starting relationships only to find out their parents are marrying making them step-siblings or children of divorces going out and through family gathering their parents also getting in relationships.