Big Dick and Fucking

"I'd love to have a huge cock, and I'd love to fuck you." you say right into her face. A moment of silence. You can feel your face turning bright red, then she starts to grin.
"I should have guessed." she laughs briefly, while you feel like you just avoided certain ****. "I don't think we know each other long enough yet for the latter, so I double on the first." she says. Dramatically she moves her hand in front of your eyes, and snaps her fingers. Suddenly you feel movement in your pants. In panic you look down and gasp as you see something move down your leg like a snake, but what you feel down there already confirms that this is no animal, this is your dick. A few seconds later it rests gently in your pants again, however bulging those obscenely all the way down to your knee. And whatever she did to your balls, the whole package no longer feels like it was made for such tight clothes. In shock you look back at Angie, yet somehow unable to panic as you feel you should. It is unnecessary to ask what she did, nor how nor why, so the next best thing takes precedence:
"T-that's pretty huge..." you state the obvious. Angie laughs.
"Isn't pretty huge the size you boys always want to be?" she wonders with a smirk. You cannot deny the truth in that.
"C-can I even get hard with such a monster?" You wonder, mostly because your body is already trying to do exactly that, which would for sure just make the situation even more awkward.
"Let's find out." she giggles and blows you a kiss.

Sudden arousal invades your mind from everywhere. Unsure where it comes from you blame the girl for it, and despite your best efforts you cannot keep your dick from raising fast. Eventually only your tight pants are holding it back from growing fully erect, but you feel like that arousal won't stop until that happened.
"Feels like sex ed class..." Angie grins. You are distracted though as your dick somehow found a way past the fabric, so you look down again, just to realize a moment later that you are completely naked. Even with that calming spell on your mind panic is making you tremble, while your dick finally turns rock-solid with the tip of it waving at the height of your chest. And below a pair of balls the size of tennis-balls dangle.
"Satisfied with your first wish?" Angie laughs. You give up on trying to get your dick to behave, whatever magic she put on it there is nothing you can do against it. **** to sit naked in class with a giant, raging boner isn't exactly how you wanted the day to progress, but having a girl with obviously incredible powers somehow wanting to be your genie could light up the day for sure.

"Why did you make it so huge?!" a question to distract yourself from the incredible urge to wrap your hands around that shaft and start pumping.
"Did I?" she played dumb "What size was it before?"
"It was..." you stop as you try to remember "Uhh...." Somehow you cannot remember. You know it has been smaller, but what size? Four inches? Six? Ten? You can't tell at all. "You... you messing with my mind!" you accuse her, but Angie just laughs aloud.
"So tell me the truth, John, what do you desire now? Beside fucking me..." she asks again with a sultry smile. Sweat forms on your forehead, as your mouth begins to speak again.