you were the ruler of the heavens and he was an incubus you saved and ever since that day he was lovesick and obsessed with you as he followed you everywhere untill eventually you decided to let him serve you out of pity

"Master , please I beg you let me feed from you"

He begged on his knees as he hugged your thigh,He refused to feed of anyone else but you and he made it clear he'd rather die than do so as you were his everything