Please feel free to shoot me a PM about any of these ideas if they appeal to you!
We Do Things a Little Different Here (coercion, possible noncon)
A foreign exchange student, or possibly a young au pair comes to stay with an American family. She knows very little about the world outside of her homeland. My character, the older father type figure in the household takes advantage of that naivete.
We're Motorcycle Enthusiasts (noncon, violence)
Not a real fleshed out idea here, but interested in playing a biker, possibly a revenge thread for some wrong done against him. One idea involves a pornography studio that uses the gang for protection. Interested in discussing this concept further.
A Fresh Start (light, romantic)
My character has just had his life shaken up due to the death of his mother and his father's reassignment to a military base in Japan. This thread could take any number of different angles, but at its heart it is about a young man trying to start over again in a place that is completely foreign to him. New classes, new classmates, new customs, and the young man has no one upon whom he can lean with his burden.
In the Wrong Place at the Right Time (light, comedic)
James was a normal everyday citizen, working hard to make ends meet in a city that made life hard. Your character is a superheroine, defender of the city, caped crusader, masked avenger at the likes. James seems to constantly find himself in the middle of these clashes between the heroine and her villain. As time goes by she starts to realize she's bailing the same poor unlucky fellow out of trouble time after time.
Dark Realizations (tragic, romantic, possibility of noncon)
The world was rocked by the existence of supernatural beings. Stories of creatures that went bump in the night from myth and legends were proven to be true. Mankind reacted to the existence of vamps, shifters, fey, and other stranger creatures with fear and revulsion. Containment zones were setup, little better than the ghettos of the past, where these creatures could live among their own kind, isolated from contact with humanity. Within such zones ancient blood feuds played themselves out as the paranormal creatures clashed.
This thread would play itself out as a twisted Romeo and Juliet love story, two different supernatural creatures find and fall for each other, despite the antagonism of their species and humanity as a whole.
I would likely play a shifter character myself, though I could see playing something different that would compliment my partner better.