Reggie the dog has always admired humans and the way they act. Since he was a stray puppy he'd always try standing on two feet to mimic the way people walk and even bark in tones that would seem like he's saying words. Eventually, when his owner Alina adopted him he was ecstatic because he'd be able to learn all about her and as time passed he had consumed more knowledge about humans. One day Alina came home worried because she saw on social media that a radiation spill broke out near her house and she didn't want her or Reggie to be affected. Those who got radiated would experience symptoms of swapping body parts or merging with one another. So she locked her doors and put up the curtains hoping nothing would happen.

The next morning Reggie woke up on the couch feeling longer and more flexible, he was able to move his hands and feet in ways he couldn't before. He opened his eyes and watched as he was able to control Alina's body from the neck down. He barked "holy shit" with excitement, and started to feel her breasts while not being used to having this much motion. Then he noticed that for the first time he could see his feet since he was only able to see his two front legs and just started to admire them. Suddenly he heard a familiar scratching sound on the floor similar to how he used to run around the house. It was Alina's human head controlling his dog body.

request from Sgb0187