He begins to speed up, ten-inch cock pounding into you. Your ass is gaping, and his cock is only getting thicker, the midsection swelling, the mushroom head thickening, the base widening. You let out a whine and he laughs.
"Thought this is what you wanted?" His deep voice rolls through you, "A big, strong, demon to fucking ruin you."
He wraps one arm under your waist and pulls you up into him, your ass aching, bruising, from the relentless fucking. With every thrust his balls churn and grow, almost the size of grapefruits now, slap hard against your own. You try and respond but all you can get out is a horny grunt. You feel his cock tense and shoot another rope of inhumanly hot precum into you, almost burning your insides. He smirks, panting, and bends to kiss your shoulder. Standing at almost ten feet tall it's awkward but he's remarkably flexible. First, he kisses it gently before you hear a growling chuckle, he bares his teeth and bites down, almost breaking the skin. Your body tenses and you let out a whine and he growls into you.
"Fuck that made you tight," he bit down again, "not that you'll likely ever be tight again after I'm done with you." he laughs.
With that you felt his cock swell again, growing even thicker, you can't even comprehend how gaped you're getting as he rails you.