He knows a more powerful magic.

"Oh," my dad said. He licked his lips. ¨This is even better than I could imagine. You found a gift. But I´ve had one too, you sick fuck.¨

¨Huh?¨ I didn´t quite understand.

Dad whipped out a wallet and showed me pictures of my girlfriend naked.

¨Dad! That´s-¨

¨That´s Sarah? I know. When I knew you came of age I became her. All I had to do was use *my* magic to become the hot little whore my friend wanted-- a pretend daughter.¨

¨But I have--¨

¨Come inside me? That´s exactly why I became your girlfriend in the first place... stop you from doing something stupid. But I admit I enjoyed it.¨

Dad looked down at my cock, which should have not responded to the revelations. Instead it got harder.

¨I know you can mind-fuck me any time," he said, ¨but now you´re ready for the bigger game.¨

¨I kinda liked fucking with you," I had to admit. ¨The taboo is still keeping me hard. When you told me you were secretly my girlfriend I almost came right now.¨

¨What if I told you it gets better?¨ dad asked me.

¨How?¨