You've got Jacosta and Laius. They have Oedipus. Oedipus leaves, kills his father, marries mother. Anyone that marries your mother is your stepfather. So yeah, technically, he is.

http://www.gradesaver.com/classicnot...images/?n=5881

__________________
[These Guys Will Show You Inescapable Doom]

"Maybe it's the sum of a million coincidences we don't quite control that brings us to a particular place
at a particular time, or maybe it's the choices we make, the actions we take. If there's one thing I've learned in 85 years, it's
that what we want doesn't always matter. But then again, sometimes it's all that does." - Mick St. John