Emily's collar jingled as she happily walked back inside the house, Brutus locking the door behind them and turning off the lights for the night, after all, he had to get up for work tomorrow and needed his rest. Emily followed him upstairs to his bedroom, which had once been hers just hours before, but now belonged to her former dog and now owner, Brutus.
She hopped on the bed, wiggling her butt happily as she sat down on the soft bed, Brutus slipped out of his shorts and started walking to the bed, he was of the mind that's since he lived alone, he didn't need to wear pajamas. "Down girl," he pointed at the floor, "off the bed."
Whining, Emily hopped off, looking up at him pleadingly, she always liked to sleep with her owner! His bed was so soft and he had the covers and sheets she could just tunnel into! "Go to bed Emily." He said sternly as he slipped under his blankets.
Head down, Emily walked back down the hall, the bells on her collar jingling as she made her way back downstairs to what had been Brutus' room this morning, but now was hers. Finding her plush pet bed, she hopped in, turning around and around to even the bedding out before sitting down, and using her forelegs (formerly arms) to prop her large breasts up and out of the way as she got down on her belly and rolled onto her side.
She yawned and stretched as she closed her eyes, tomorrow she would play with her owner and have a wonderful day and everything would be perfect and happy!
And as the first day of the new world order ended, Emily, once a millionaire and top executive with the help of her influential father, now crawled naked on all fours and slept in a pet bed, and didn't even know what she'd lost.
Neither had all of humanity either though, so there is a consolation prize there.