June and Jennifer Gibbons were identical twins who, from a very young age, were so bonded to one another that they created their own “twin language” to communicate speaking only to one another.  They rejected any other relationships including their own parents and siblings.  Later, they would construct a fantasy world that only they inhabited.  This lead to more serious anti-social behavior that resulted in a shocking crime spree.   Learn more about your ad choices. Visit podcastchoices.com/adchoices