Daisy wheeled around, hooves clopping, as she felt another presence enter the stable with her, some farmhands closing the door behind it.
The bull was enormous, truly tremendous, its nostrils flaring, grey fur stretching over enormous muscles. And beneath it dangled a prodigious cock, longer than a man's arm, and thick as a tree trunk.
Daisy went to backtrack, horrified. What was she going to do with this thing? But, confusing, she felt a strange sensation. Her huge nipples began to stiffen, protruding outwards. A fiery heat, a soaking wetness, spread somewhere behind her udder, as she turned around, proffering her behind for the beast.
"Moo!" she grunted, feeling its enormous weight heft atop her. Something jabbed, jabbed, jabbed at her hindquarters, before suddenly she was skewered by the enormous rutting cock. Mooing and panting, she found herself fucking back into the bull, its warm breath on her lower back, udder swaying, slapping against her thighs. Her hands kneaded her monstrous tits as it rutted into her, its muscles bruising her backside.
Finally, she felt a powerful surge, and her insides were painted white with hot bovine cum. Gripping the stable wall, she felt the bull pull out, and be led away, brain a mess, standing, swaying and mooing.