The Twins Love

A pair of twins who are very close and very alike to each other. They're always together, having the same outfits, they're both very good at manipulating other people. As they grew up, they learned that the only person they could trust is the other. They care for the other more than anyone or anything else in this world. Their mind is always linked as if they have telepathy. They are always in the same page, always in the same frequency as the other. They lived as if they are one instead of two individuals. They never left the other's side. Ever.

Having that kind of a relationship, what if a stranger barges into their lives and change the way their world was supposed to be? What if that stranger takes the other away? What would the other do when he's out of the picture? What would he do next?