A Succubus

The runes from your body extend into your veins pumping energy of blue and black through you and as the reach the connection of your bodies the spread into the young girls form. Her body begins to spread with the same magical energy passing through her veins as it snakes down her legs and through her abdomen.

Her small frame begins to change, altering itself to accommodate her master's girth and length as your cock now presses deep inside her. Her pale white skin turns into a smoky blue like yours, her small breasts swell and her light brown hair turns a dark auburn red.

As she changes the sweet angelic girl changes into a seductive she demon and her helpless moans become passionate cries for more. To make the binding complete you must give her your seed and you do. Your semen courses through her impregnating her body with your power.

She lies panting as you pull out of her. As she lies there breathless her body begins to return to the guise of the innocent virgin you just defiled.