The MaCall Alpha [TW/TVD/TO] Discontinued

What happens when the True Alphas big sister moves to Mystic Fall's and finds out that her 2 little cousins have gotten mixed up in the supernatural world or that her new found mate wants to kill them.

Where even after all the bad he's done the big bad hybrid Klaus Mikaelson finds his mate in the cousin of those he's trying to kill.

Will he be able to admit it or will he deny it?

P.S. I'm not that good at writing so sorry if it sucks. This is my first story that I actually want to continue.