What are some cute, non bulky, protective cases for iphone 4s and teenage girls?

I'm 13 and got a new iphone maybe like a month ago. At first, i didn't have a case for it and didn't like that it wasn't protected. So i got an otter box. I like it and its stylish and protective and stuff but its really bulky and i can barley fit it in my back pocket.so, i'm looking for a stylish (i like pink and mint colored things) non bulky kind of cheap protective phone case? It doesn't have to be name brand. Just something nice.

People these days keep the otterbox it is the best

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