Looking for an awesome yaoi/bara manga please, any help is welcome, thank you !

Hey guys !! I've been searching for a really cute/sexy manga that either may have been a yaoi or a very toned-down bara (by toned-down, I mean that the guys weren't much hunky like you usually see in typical baras mangas).

It was a oneshot that was available in English, I read it either on this site or somewhere else I can't remember. It was about a middle-aged priest who found an injured bat and treated it, only to find out that it was actually a transformed vampire or something. After that incident, the younger vampire dude just hangs out around the priest's church and to thanks the older man he gives him a free blowjob or something lol ! If anyone know about it, could you kindly give me the name of that oneshot ?

Thank you very much for any help you may provide !!

(And by the way, I recommand that oneshot to anybody who hasn't read it yet, it's really sweet and funny, though it's definitely too short, wish there was another chapter of it !)