It had been a few hours since Natalie became a hucow. Since then, they had had sex at least ten more times, leaving puddles of milk everywhere they went. They were currently on their knees in the kitchen, milking their udders into a large plastic tub. They all mooed with pleasure as they tugged on their teats; Jeff especially was loving his new feminine genitalia.
'Wait here ladies,' he said, going to his room.
Jeff opened the Chronivac. He wanted the full cow experience, so he set his species to cow, and his gender to female. He made it so the Chronivac would transfer them all to a nearby field. As he hit apply, he became giddy and ran back to the kitchen.
'You're gonna love this,' Jeff said to Sarah and Natalie, as the changes started. Suddenly, Jeff, Sarah, and Natalie found themselves standing in a circle in the middle of a wide, grassy field. Suddenly, they completely lost control of their bowels as pee sprayed out of their pussies, spraying their legs. They all blushed, and their assholes widened, large cow-pats dropping to the ground behind them.
Jeff lost his balance, falling forward as his hands became hooves; standing four-legged now felt natural to him. His mouth became a muzzle like his girlfriend's, as the grass beneath him began to look tastier and tastier. He looked over at his sister, finding her already bent over, pulling out tufts of grass with her teeth.
Jeff joined her in eating the grass, which tasted strangely delicious. After a second, Jeff couldn't stop himself from eating the scrumptious plants from the ground. He didn't notice his body becoming wider and heavier, no longer resembling a human's. He looked up for a second, and tried to say something to his girlfriend, but the only thing that came out was a moo. They all happily mooed to each other for a minute.
They were all full blown cows now, and although they still kept their memories, they could no longer communicate as humans. To their right, they saw a farm, and more importantly, bulls. They entered the farm ground, effectively renouncing their humanity and becoming farm animals.
Jeff saw a strong bull in front of him. His eyes were transfixed on his mesmerizing cock, which was flopping around, slapping his stomach as he walked. Jeff felt his bovine pussy begin to dampen, and he turned around, presenting himself to the bull. He felt his strong breath on his ass, making him extremely horny. After a second, the bull mounted him, shoving his massive cock into Jeff's soaked pussy. He thrust in and out of him, making Jeff's mind go blank with unimaginable pleasure. He mooed loudly as the bull shot a massive load of cum into his pussy. He hoped to god he was now pregnant.
Jeff looked around, finding Natalie and Sarah also being mounted by horny bulls. Jeff reached his head under the bull's body, licking his cum-covered cock clean. Jeff wondered when the farmhands would come around to milk him, as his pussy got wet again.