NOT my step-sibling!

When Clary's mom and Jace's dad decide to rekindle their once forgotten high school romance and move in together, the athletic all-star and artistic rebel are forced to tag along. At school Jace and Clary lead very separate lives and once their worlds collide at home, it seems sibling rivalry ensues. But there is a fine line between love and hate. Or is it LUST and hate?