His Sister

Mark felt pretty heavy, like he had just drunk ten litres of beer. He arose from his bed and walked over to his wall. He pressed the lightswitch and looked around. A strange woman layed on his floor. Mark was confused. Partly because of the woman herself, but mainly because of her appearance: She was completly naked. But that wasn't all. She also had the biggest rack he had ever seen, even in porn. Her ass was outta this world! He went over to her to see her belly was bloated? That was strange. He approached the woman more closely. He couldn't believe his eyes when he saw her face. It was the fac of his sister! No way, this couldn't be. She never looked that way! He must still be dreaming. Ouch! He pinched himself. Not a dream. But how? Wait. If this, right now, wasn't a dream, then maybe the goddess he dreamed of turned out to be real too? What did she say again? Something about changing his body, his cum. And that he apparently impregnated his sister. Well, that would explain why she was laying naked on his floor. Had he really done that? If so, then he would also have the ability to change his body. There was only one way to know. "I want to be buff so that I can lift my fridge with ease" he wished. He waited anxiously. Nothing. Maybe it was just a dream after all. "Too bad. I wanted a bigger cock, like 10 inches or so." suddenly, he felt a surge in his nether regions. His three.inch dicklet had grown to a fullblown bitch breaker. "Woah!" Now it clicked. The goddess he spoke to was the goddess of sex, so he could only do sex related wishes. This gave him an idea. " I wish I had big muscles so that I could fuck my sister while standing, holding her up." He grew really strong. He could probably lift his fridge now. Now he knew how to get what he wanted. He just had to make his wishes sex related. "Oh, I have so much power now. I want a bigger cock! I want to be taller so that I am more attractive. I want to have balls as big as apples that can cum half a gallon per shot. No refractiory period!" he grew to 6"6, his balls expanded in size, immediatly filling with rich, incredibly potent cum. His cock grew from 10 inches to 14. He was now a sort of demi-god. He could have any woman he wanted. He could breed Ms. Bower into submission. He could breed his friend Sarah. There were so many possibilities...