Use Me, Royal Stranger

[Complete] A werewolf mxm, mpreg story:
To begin, Carlen didn't have much, in fact, he didn't have anything at all. Abandoned as a baby, Carlen was fortunate to be adopted by a royal healer of the castle. Picking up on her wise words and healing skills, Carlen grows to become a compassionate person who simply wants to be useful to others. A Royal Stranger finds him in the woods and finds him intriguing. Everything about Carlen sparked his curiousity and he wanted to know more. Yet, he can never associate with someone with such a low-born status and so weak. The next rising moon shines on the two individuals with a greater purpose. The pull is hard to resist. A mate is rare. Will King Alaric give in to Carlen's wishes to 'use him', or will he choose to be a bigger man?