A Delicious Descent by Amanda Meuwissen

Dracula retold, with Jonathan as the object of the legendary vampire’s obsession.
Engaged to his dear friend Mina, Jonathan Harker jumps at the chance to delay their wedding by accepting an assignment in far-off Transylvania. Jonathan loves Mina but not in the way a man should love a wife, for his true passion lies with the company of men, an illicit craving he can never indulge.
Upon arriving in Transylvania to help the elusive Count Dracula purchase an estate in London, Jonathan makes some surprising if tantalizing discoveries. It seems his mysterious client has similar proclivities and encourages his male servants to explore their forbidden desires, all the while tempting Jonathan to partake.
Carnal pleasure is not the only surprise awaiting him, however, as Dracula’s secrets are far deadlier than Jonathan ever imagined, and as alluring as his new master’s touch.