So... this is very interesting and intriguing. I'd love to RP with you, but I only play female characters. Now, I already have a few ideas as well, so we can hopefully figure out something ^.^
One of my ideas would be two classmates who only now, after a month of first year high school noticed each other by forming some kind of club and, although they at first don't like each other and get in each other's hair a lot, become more and more friends. Or something like that.
(By the way... I am pretty indecisive as well ;-;)
I hope me not being an English native speaker won't be too much of a hindrance.