The bull lept out, rearing and snorting, kicking dirt in the air. The kids backed away and you could only stand in frozen fear. All the other cows spread as if funneling the horny beast to you.
"No, no.... no," you keep repeating as if reality was slowing down for you to realize how far you fallen and how quick. You and your wife had been planning on a first kid and now in two weeks you'd have your first foal. There was some part of you that spread your back legs and brought your tail aside as your heated piss drew the attention of the bull.
He stormed over and you knew this was it. Your neck began to thick and lengthen which only gave you a better view to watch the bull circle and his massive member to flop hard under him.
"Please, I've give you anything," you beg as hot bull nostrils flare at your ass as he takes in your scent.
"Forget about it," the leader kid dismisses. "You're worth more to me a fat breeder at this farm than you ever were," a sudden weight is on your back legs as your mounted, "than you ever were as a man."
As that bull cock penetrates you, your face pushes out, widening and your teeth falling out to be replaced with bigger, flatter ones along with a dull tongue and eyes. Your head lowered, you mumbled some half-human bestial spite as your hair fell out and fur grew in with every successive pump of the bull on you. Every thrust pushed away more memories and manners and words you knew as the simple nature of something else took over. Hormones released that made you a mother and you lost that sense of you, the human you, when the bull planted his seed in you and guaranteed your fate in this barn for good. Your wife, after watching the video decided to join you as a cow as well. Turns out she was better suited as a bull and you found out she was much more suited to the task that you would have been.