Entitled Woman Exposes Her Sister's True Parentage and Mother's Decades-Old Affair, Sparking Dramatic Family Showdown

Your priorities should always be centered around your family. Having said that, what would you do if, at the tender age of 25, you discovered that your father is not who you had been led to believe?

The story below is an account of a frustrated sister. The original poster (OP) is the oldest of her siblings. OP has never been very close to her sister, but because she is family, she has always held back on sharing her true feelings and opinions. 
All that, however, changed when the sister moved in with OP and unwittingly made it known that their fathers are not the same and that OP is, in fact, the offspring of a previous parent's affair. Much emphasis was paid to the fact that OP banished her sister from her house because she was confused and furious.

So be sure to read the story below if you're interested in learning what happens next and how OP tells her parents she knows the truth! After you're done, don't forget to read the tale of the woman who breaks up with her boyfriend for showing up to Christmas dinner three hours late and without bringing anything!