A shared heart

Characters Lucy and Charlie are probably my only Oc's. Not my first, but my only current ones. I have some ideas for background characters, but only idealized stereotypes, not characters.
My original concept was "two girls who are alike but diferint and kinda hate each other, fall in love." Oddly, this is one of the few times I have plot but not characters to use.
First came Charlie. Charlie was basically based off the archetypical writer type. Shes moody, depressed, a bit flamboyant and pretty much the sane man.
Lucy came about when I overheard a conversation in the lunchroom, describing a rich girl who played sports. I used that and added closet gayness and pervert to that and got Lucy.
In all honesty, this is a reeeeeaaaalllly rough sketch, and block coloring, so it wasnt made to be sleek or overly nice. I'd like to think theirs more to them then just the stereotypical romantic comedy couple, but that seems the route their relationships going.
They have their problems, such as Charlie's depression, and Lucy's parents, but in the end they have each other to count on. (AKA typical romantic comedy couple. Pfft. Need inspiration, dammit.)
And they have the fact that thier school doesnt allow relationships, (not even boys who dont go there.)
Why? I want the fact that someone finds out and blackmails them with it, or they get seperated because they're found out (being roomates n all).

I'll leave you with the thousands of spelling errors I just made and submit this thing, because frankly, I'm tired. Good night, DA.
(I'm going to regret writing this in the morning, arent I )