Board Thread:WARNING ALL USERS False Info\Spoilers/@comment-2187922-20140311194917

One theory i've been having is what if Melissa cheated on Agent McCall with a younger Peter Hale and Malia is actually Scott's half sister? Then Melissa (being a single parent after Agent McCall left) gave the girl up for adoption, and she was adopted by the Tate Family. Then, to protect Malia, Talia took Peter's memories away (including the ones of Melissa) to keep the secret hidden. The only person Melissa told would be Sheriff Stilinski, which is why he was so emotionally invested in the case.

I think this could be a very plausible idea. Anyone have any thoughts or issues that conflict with this theory? 