Possible Duplicate:
Would a baalat teshuva need a get from each previous sexual relationship?
Suppose:
Man A seduces a virgin Woman X. Man B informally lies with Woman X. Man A and Woman X informally break up. Man B and Woman X informally break up. Man C informally lies with Woman X. Man C formally marries Woman X.
Should Man A gives Woman X a Get? Might the Get be dated retroactively? If Man A give Woman X a retroactive Get does this impact Man B? What other obligations rest on Men A, B, C?
