You begin stomping forward, beginning your treck through this labyrinth. As you stomp towards the wall, you hear heavy breathing followed by the sound of hurried running. You immediately look to your left and right, seeing the tail end of a human running down the halls.
Your desired release is imminent, all thanks to that human. You rush forward, your heavy footsteps muting all other sound. Your pursuit is perfect, the human stumbles as he turns each corner, while you gain distance. The first hall you see him run for a second before he turns down a corner, then you see him for three seconds, then five. Eventually, you are close enough, you grab the sides of him and lift him in the air, yelling in victory!
The human struggles, his feet weakly kicking your chest. His struggles do nothing to deter you, and in an instant, you shove the man onto your vacant cock. He screams in pain as he is roughly penetrated, the movements clearly catching him off guard. You hold him tightly as you begin to thrust, your only thoughts being on your dire need to cum.
The man's screams and yells continue until you feel the man become heavier and heavier. Your cock was resting tightly in the man, but now it seemed to fit perfectly, you fondle the mans now furred ass and feel its tight muscles. You allow the man to stand on his own, convinced that he will no longer escape. He begins to thrust in time with you, only stopping as he readjusts to his new hooves.
Your rut does not stop, as you fuck the soon-to-be minotaur with wild abadon. You rub your hands through his now muscled chest, roaming his body. You follow his abs down, going lower and lower until you hold his cock. You hold it tightly, feeling it expand in your hand. The beasts cock begins leaking cum, the last of his humanity leaving him. You stroke his cock roughly to assist in his transformation, the remaining human seed resting in your furred hand.
Finally, you know its time for release. Your cock twitches as you shoot your seed, the liquid being accepted by your brother. You hold him tight as you feel your seed begin to leak out of his ass, the excessive cum being too much for even a fellow bull to hold. After a full minute, your cock finally dies down, and you exit your brother.
You stand next to him, examining his new bull body until you both lift your heads and moan. Your balls begin to refill with seed, your cocks in need of release. Your brother begins to whine as he masturbates, attempting for release. You pull him close and nibble at his horns, reassuring him that you'll both cum soon...