The succubus swayed over to the boy, who was seemingly frozen in shock as he watched her come near. She placed her hand to the boy's head, ruffling his brown hair as she tsk-tsked through her fanged teeth. "But you're too young to give me anything that I want, maybe we should fix that."
Michelle kneeled down, bringing herself eye level with the child. A few quick slashes of her claws removed the clothes from the boy, leaving his small body exposed. She leaned forward as if to kiss him, and exhaled some sort of smoke. The tendrils of smoke drifted into the boy's mouth and nose, causing his body to convulse and fall to the ground.
She stood up and stepped back, amazed by her own powers as she watched her magics already working on the boy. As he trashed on the ground his body seemed to stretch, arms and legs growing longer. His hands and feet became larger, looking out of proportion with the rest of him. His boyish cock began to stir, stiffening as it began to grow, his balls swelling.
The first strands of dark pubic hair began to sprout on the boy, a dusting of darker hair appearing on his arms and legs. His shoulders began to push out broadening as he got older, entering his teen years. The baby fat melted from his face and body, the planes of his face becoming more defined. Fine hairs began to grow on his lip and chin. His body hair began to thicken as he body continued to stretch out, his pubes beginning to grow upwards towards his belly button. Muscle began to form on his scrawny form, slight pecs and a six pack becoming visible, giving him the look of a runner. His cock growing even larger, as his balls dropped a bit more and swelled.
His jaw began to harden, becoming more squared as his facial stubble began to thicken and fill out. A bit of hair appeared around his nipples, spreading out until his chest was covered in a light dusting of fur. His body slowly stopped growing at around 6'2", his 8 inch erect cock pointing up straight from his pubes, his lean athletic body panting with the strain of what just happened.
Michelle went to her knees next to the new man who looked to be in his early twenties. She wrapped her hand around his cock, causing him to moan in pleasure. She leaned over, speaking softly to him as she stared into his eyes. "What's your name? I'd like to know before I send you to your parents."
"Marcus." The name came out in a deep voice that caused the once boy's eyes to widen in shock. He lifted his head to look at himself, fearful eyes turning to the demoness. "What did you do to me?"
"Children are too innocent of my powers to work on them. So I made you a man." She licked her lips as she looked him over. "A quite handsome man if I do say so myself. Now.. on to business..."