To this date, I don't think I've ever heard a woman call anyone きみ but they do use あんた/あなた and おまえ a lot (well, the more boysterous ones use the latter). Although it's safe to say that if you use the person's name that is the best way to address your friend who's on the same level as you. You wanna make it cute? Add ちゃん on the end! For example, さちこちゃん. If you are really, really good friends with them, you can change ちゃん to ちん (for girls only) or タン.

For the record, you don't actually have balls right??