Downloading Allure

Hannah has an open relationship with her boyfriend, and it's never been a problem.
Until she hooks up with the mysterious Morana via a phone app and wakes up the next morning with an insatiable taste for blood.
Araceli enters Hannah's life and helps her come to terms with her new status. She has become a vampire, and there is nothing she can do to change that.
However, as long as she does not take a life, she will get to keep her soul.
But how long can Hannah resist her urges, living on tastes from blood-bags, the odd stolen bite from a willing arm?
When Morana comes back into her life, Hannah finds it harder and harder to resist her allure.