Origin: French Mythology
About Le Succube's Dragon Steed
Le Succube (Succubus) was a French spirit. She looked for male French adventurers so that she may drain them with her kisses. She rode on top of a dragon, who would take her where ever she pleased. 
Many artists depict Le Succubus' dragon to be a huge, elongated wyvern with a long body and short arms. 
For more information on footnotes and references, please see the bibliography.