Forever After All

Almost every marriage in Jack's family has been arranged, so it isn't a surprise when his parents break the news, but it really sucks now that it's actually happening to him.
Zack is the fourth child in a royal family of eight, and his parents set him up with Jack, who is an only child, so that he may have a chance to actually rule.
Each prince can't help but throw a fit about the situation, but they also can't help the chemistry they have when they finally meet. And neither prince is willing to give their parents the satisfaction of a good match.

Based on a prompt from this post. Also inspired by Cinderblock Garden by All Time Low.