I am looking for a story. The main character is a boy who is asked by his ex-girlfriends mother to perform a service. The Mother went to a witch go get a love potion that would make him and her daughter be in love the cost of the potion was ? years service to the witch. The ex girlfriend decided not try to get the boy back as a boyfriend and the Mother still had to pay the witch the agreeded price. The mother finds she is sick and dying and that her daughter would have to pay the price. Since the boy caused the daughters depression the mother askes him to work her service time. He agrees. Upon meeting the witch the witch detects some magical ability in the boy and agrees to his service. The boy's step father sells the home the boy is living in and the boy is forced to move in with the witch. slowly the boy transformes into a female and become very powerful witch also. Falls in love with son of another witch and marries. Learns how to swap soul to a new body when old one is worn out.

Any help finding story is appreciated

ewilde927