A Brother's Price by Wen Spencer

I've been waiting quite a while for this one. The world that this is set in has a population problem of not enough men. Our hero is about to turn 16 and will be married off. He is the eldest of 4 brothers. A very rare situation. Men are either sold or swapped for another male for his sisters to marry. Events early in the book cause the hero, Jerin is sponsored a season of coming out among royalty. The fix is in since one of the princesses has fallen in love with him. Events happen then to shed light on what really happened to the older princesses and their husband. I really enjoyed this one and the society was rather well thought out.