The piglet and her big bad wolf

Millie loves her big bad wolf of a sister (4lb Emmie the Yorkie).  Sure, they squabble like any sisters do.  And Emmie might have to remind Millie about the concept of personal space every once in a while.  After all, she is a tiny little dog in a house filled with pigs that don't always watch where they are going.  But at the end of the day, they are sisters.  They don't care about species or size.  Love doesn't focus on meaningless things like that.