He tries to....

You smirk as you notice the buldge in his pants. He starts to fumble with his pants, in an attempt to remove them. Your smirk widens as you push him onto the couch.

"Let me help you with that." you whisper as you open his pants. You pull out his small but hard dick. As you mount him its slides into your wet pussy. He starts thrusting up and down and you bob in his rhythm. As you fuck him, long black tendrils creep out of your rear. They snake their way up the perves sides. One slipps into his open mouth, one into his pants. Others cover his scrawny body.

Soon he gets close to cumming. You slow your pace as your tendrils start pumping black goo into his body. You watch as his eyes black over and he succumbs to your will. His hair darkens and grows to his waist. His frame shrinks and becomes more feminine. As you watch his chest expands into breasts, they swell until they reach about a d cup. Soon he is completely female, except for his cock, which only grows larger. The shemale, oblivious to her changes, keeps fucking you as hard as she can. The latex settles around her new form, giving her a collar and maid outfit, all out of shiny black latex. As the changes finish, you finally allow your pet to cum.

"Now slut! Come with me, we have work to do!" you exclaim.