Um, I tried to write this before, but it didn't work out. It probably isn't a very good challenge, but I'll post my idea anyway.
Requirements:
-DOES NOT have to go along with the storyline of the original Romeo and Juliet
-Pansy must come onto Draco, thus making him leave the Dungeons and head to the astronomy tower to get away from her
-Ginny must muster up the courage to ask Harry out, yet he refuses
-She goes to the astronomy tower to be alone, unaware that Draco was there
-You decide what happens next
-Somewhere into the story, Draco must get Ginny to pretend to go out with him, to get Pansy off his back
-Their parents don't approve, etc.
-Must end up D/G
Now for the real challenge: Try not to make Draco too OCC. It'll be pretty hard, but thats why it's called a challenge, now isn't it?
Please somebody try this challenge!!!