I was in Pirates of Penzance this past year. The main female roles are Mabel, Ruth and then Kate and Edith. Edith is the oldest daughter of the Major General. Kate is another one of the daughters, as is Mabel. All of the girls in the play are his daughters, except Ruth. She is an old woman. Mabel is the romantic lead and has the majority of the attention. Edith and Kate have a few solo lines throughout the play, but they are very minor parts. It would depend on what ages the director is looking for in each of these parts, but if he wanted younger people, you could be cast as a "sister" (as the Major General's daughters are called). Good luck!
-I'll give her this much, she doesn't give a twig about what other people think!
-No, she does, she just pretends not to. -Fiyero and Galinda, Wicked
why try to fit in when you are born to stand out?