Neutral:

It is known that certain powerful dragons can take on humanoid form and even have humanoid lovers. Sometimes a child is born of this union, and every child of that child unto the thousandth generation claims a bit of dragon blood, be it ever so small. Usually, little comes of it, though might sorcerers occasionally credit their powers to draconic heritage. For some, however, dragon blood beckons irresistibly. First come the dreams of flying. Many dismiss them as nothing more than fanciful dreams. But a few embrace the dreams, recognizing their allure as a promise. These become Half-Dragons, who use their magical power as a catalyst to ignite their dragon blood, realizing its fullest potential.
Half-Dragon prefer a life of exploration to a cloistered existence. Most are sorcerers, but bards sometimes follow the path. Already adept at magic, many pursue adventure, especially if it furthers their goal of finding out more about their draconic heritage. All Half-Dragons are drawn to areas know to harbor dragons.