You pause, contemplating the huge dick that bobs in front of you. You run your tongue along it, lapping up your Master's salty-sweet pre, planting kisses along its veined length. You were surprised by how much you wanted his cock; was that your own desire, or his? It didn't really matter, of course--the desire was there either way.
Yet there was an obvious problem: there was no way you could survive something so big being forced into you. But what's the point of having a genie who can grant wishes without using them to solve such problems?
You pause your oral pleasuring of your Master and look up at him. He towers over you, his human-sized skull sitting atop his oversized, spectacularly muscled body. "Genie, I wish you could fuck me without injuring me."
It's hard to read emotions on a skull, but you can feel your Master's surprise and amusement through the telepathic bond you share. "How to do that though..." he purrs, affectionately rubbing your head, his big fingers running through your hair, massaging your skull. "I could make myself smaller of course, but that's unacceptable. And I don't particularly feel like making you bigger; having a little human as my slave is fun, after all. Maybe there is a more creative solution though..."
You feel a wave of energy wash over you, followed by a series of powerful shudders. You breathe heavily, your mind buzzing with confusion. Your Master pulls your head forward, toward his huge cockhead. You feel your lips open wide, wider than you thought possible, stretching around his fist-like head which fills your mouth with a pop. He chuckles, holding you in place as he pushes forward, his enormous tool ramming its way down your throat, causing your neck to bulge out noticeably. He pulls back, his huge cock vacating your throat and mouth, which return to their old size.
"How... What did you do?" you ask, confused by what just happened. A shiver of fear runs through you.
"Isn't it obvious?" your Master responds, a smirk in his voice. "Your body has become pliable and stretchy, but not so much that you become useless for the purpose I have in mind for you, my little slave. And that purpose, of course, is to amuse me." He laughs, and then picks you up. "Now, I can fuck you properly," he rumbles, holding you in the air over his prodigious erection. Your clothes disintegrate away to nothing as he lowers you onto it, impaling you on his monstrous cock. It's impossibly thick and there's a heat in it that warms you up as he slowly pushes you further and further down onto it. Your stomach begins to bulge out, pushed out first by his invading cockhead, then by the thick shaft as he drives himself further into you.
Your mind is awash in pleasure like you've never experienced before. Your Master's enormous cock is most of it, but so is the telepathic bond--you can feel some of his pleasure, and he can feel some of yours. He begins to pull back, then thrusts forward again, sending your mind reeling with sensation. You reach up and run your hands over his powerful shoulders and arms, feeling the bulges of muscle as he holds you in place, his strong, sculpted torso undulating as he fucks you. You lean in, pressing your face against his jutting pecs and begin to suck on one of his thick nipples. He starts fucking you harder, faster, grunting as he abuses your hole with his giant geniecock, stretching you out with it. You can feel his huge tool vibrate inside you as he approaches orgasm. His whole body stiffens, his powerful muscles tensing, the big nip you're sucking on pushed into your mouth as his pec surges against your face. His huge shaft is wracked by powerful spasms as he cums, rammed into you to the hilt as it pumps you full of his hot seed.
Your Master takes several deep breaths, recovering from his exertion. Still impaled on him, you can feel his huge cock settling down as it empties the last drops of his cum into you. He musses your hair affectionately. "That was a very good wish, my little slave," he purrs, "You have pleased me greatly. I hope your next wish will not disappoint."