Vassalord Series by Nanae Chrono

Charley, a cyborg vampire who does the Vatican's dirty work, is the thrall of the local vampire playboy Johnny Rayflo. As the two of them fight crime--and each other--hilarity, violence and sacrilege ensue! But can Charley resist his own desperate cravings for blood? Find out as the devilish duo go up against a childlike vampire princess, a mysterious branch of the Unitarian Church...and each other.

Charley, a cyborg vampire who does the Vatican's dirty work, is the thrall of the local vampire playboy Johnny Rayflo. As the two fight crime-and each other-hilarity, violence and sacrilege ensue! The plot thickens and the hijinks continue as our handsome duo put their own sexy spin on the Mile-High CLub. An airplane ride yields several surprises for Rayflo and Charley, including a run-in with an actress with a dark secret and a mysterious saboteur... moreCharley, a cyborg vampire who does the Vatican's dirty work, is the thrall of the local vampire playboy Johnny Rayflo. As the two fight crime-and each other-hilarity, violence and sacrilege ensue! The plot thickens and the hijinks continue as our handsome duo put their own sexy spin on the Mile-High CLub. An airplane ride yields several surprises for Rayflo and Charley, including a run-in with an actress with a dark secret and a mysterious saboteur. But as Charley begins an investigation of his own, his feelings for Rayflo seem to get in the way at every turn... less

Charley, a cyborg vampire who does the Vatican's dirty work, is the thrall of the local vampire playboy Johnny Rayflo. As the two fight crime-and each other-hilarity, violence and sacrilege ensue! Rayflo gets mixed up with a devious incubus who nearly tears him to shreds. Meanwhile, Charley heads to Italy to uncover the secret behind the mysterious drug known as VASSALORD. There, he infiltrates a mafia prison, where he finds a most disturbing scene... moreCharley, a cyborg vampire who does the Vatican's dirty work, is the thrall of the local vampire playboy Johnny Rayflo. As the two fight crime-and each other-hilarity, violence and sacrilege ensue! Rayflo gets mixed up with a devious incubus who nearly tears him to shreds. Meanwhile, Charley heads to Italy to uncover the secret behind the mysterious drug known as VASSALORD. There, he infiltrates a mafia prison, where he finds a most disturbing scene. Will Charley get out with his body-and mind-intact? less

Together again at last after their excursion into Italy, it's going to be a hot and heavy reunion for Charley and Rayflo. And apparently a short-lived one. Still on edge about Barry and his machinations, Rayflo is reluctant to get his favorite vassal involved, and so as soon as they escape Yaoding, he's off again... moreTogether again at last after their excursion into Italy, it's going to be a hot and heavy reunion for Charley and Rayflo. And apparently a short-lived one. Still on edge about Barry and his machinations, Rayflo is reluctant to get his favorite vassal involved, and so as soon as they escape Yaoding, he's off again. In the meantime, Father Mailer is back on the scene, and with no time to mourn over his absent Master, Charley continues hot on the trail of the mysterious Vassalord! But a romantic night at the opera leads to surprises all around... less