Xavier Remington 
A Weredragon is a one of the rarest species of supernatural being in existence. They’re basically a human that can transform into a Dragon. Generally half the size of a standard winged dragon with comparable abilities such as breathing forth hellishly hot fire, and flying. They are people who died, and were resurrected via dragon blood. Many ancient scrolls speaking of dragons have this common text within,“One who ingests the live blood of the blasphemous behemoth shall never perish from the Earth. Such an immortal must however pay the price of a halved humanity!” What the ancient spoke of was the first mention of a Weredragon. Dragon Slayers were the first to discover the immortal properties of dragon blood. As they valiantly fought these ferocious giants with large blades of mystical metals they would on occasion slice various arteries causing large quantities of dragon blood to douse them. Sometimes the blood got into their mouths, or entered their own bodily wounds inflicted upon them by the dragons. Once the fresh blood of a dragon entered their bodies it was within them for life. They had no idea of the repercussions until they died.
The dragon blood would give a person a fiery energy throughout their lives but no other benefits were witnessed until they met their ultimate demise. In addition the blood had to be fresh from a wound. It could not touch the ground or anything else or it would be made impure. Upon death the ones with dragons blood surging through their veins would immediately awaken finding the cause of their death completely healed. If it was old age then there was a minor regression of their geriatric status. However the death alone wasn’t a fountain of youth. Only transformation into a dragon would grant them a return to youth but they would age again until another Weredragon transmutation.
Upon their first death a Weredragon would finally have the ability to transform into a 
demonic fire breathing dragon. Unlike Werewolves the full Moon wasn’t the catalyst to attain temporary dragon status. Instead it was ironically the pure unholy light of demonic dragon fire spewed forth from the towering terrors. Any other source of pure unholy light will transform them as well. Moonlight has unholy elements in it but it is not pure in nature so it doesn’t effect Weredragons unless it’s a pure Blood Moon. Those Dragon Slayers who died while battling a dragon found themselves awakened, sometimes in the belly of the beast, and transformed into a dragon. Even at half the size of the dragon they would tear the beast apart if they transformed within their stomachs. If the dragon attempted to incinerate the slayer while he briefly lied dormant it would have no effect as they became immune to unholy fire.
The Weredragon like the Werewolf has no human consciousness in their monstrous form during their formative years. Like all dragons they have a diabolical cunning intelligence as they go after their prey which is anything that moves. More or less for a Weredragon in dragon form this is an alter ego manifested by their demonic DNA. Eventually there is a slim chance to acquire limited or even full capability to not only control transformations at will but also retain their human persona. In addition they may even be able to halt the transformation midway to appear as a Dragon man or woman. Something akin to a Demi-Dragon. It is mentioned in ancient texts that it is extremely difficult to tame the demonic dragon spirit which is far more powerful than the Werewolf demonic spirit.
After their first transformation by unholy fire they remain dragons until exposed to the holy light of the next dawn of the Sun. So in other words they can transform in sunlight or at night when exposed to unholy fire. As the first rays of sunlight eat away at the black skies the Weredragon returns to a human form. In human form they have enhanced strength, speed, agility, senses, and even intelligence since regular dragons are already some of the most intelligent animals in the paranormal world. That only adds to human sapient intellect. When Weredragons in human form are angered their eyes glow a fiery reddish orange as if flames are dancing in their eyes. Similar to the glow in standard dragons eyes. They are also immune to all forms of fire. This includes holy fire in human form due to their humanity protecting them. However in dragon form they are vulnerable to holy fire.
If a Weredragon mates with a human would that produce a Weredragon or a human. If two Weredragons mate would it produce a Weredragon?