The Tyrst with Colleite (Hot Faire - A Dark and Licentious Adventure in the Time of the Templars #2)
Alyssa Hart

Just turned eighteen, Celianne is on her way to town on a desperate errand and is willing to sell herself for coin. But she is finding she has feelings for her cousin's friend Colleite that go beyond a simple friendship. After a brief encounter, the taste and scent of Colleite haunt her, and even as she gets to work earning the money she needs...and finds it's not all excitement...she finds herself falling into a dimension of sinfulness that had never been in her plans.