Crookshanks

Sirius Black always had a soft spot for Crookshanks, and Crookshanks always seemed a little more than any other cat. But why?

Jeneveve (Jenny) Potter has spent her entire life trying to live up to James; as a friend, prankster, and charmer. Unlike most girls, she isn't stupid enough to chase after people like her twin brother or Sirius Black. She hasn't ever gotten along with Black since third year, since her short-lived romance with his brother (oops). But as her fifth year begins and she finally begins getting along with the Marauders.. she finds herself feeling like any other Gryffindor girl.

She starts falling for Sirius Black.