Kyle hurried back inside, and downstairs to the basement. He looked everywhere in plain sight. Then, he shoved his hands inside the cushions of the chair he had sat in last night. No luck. Maybe under the chair.
He was down on the floor reaching under the dark gap between the floor and chair. Suddenly, he felt Chad's hands on his shoulders and his mouth biting on the waistband of his shorts. Kyle's ass was exposed. Why wasn't he resisting?
Slurp! A wet tongue coated his ass crack. Kyle knew what was coming. He wanted to bolt and run, but he couldn't. He just lay there prone on the floor.
Chad mounted Kyle. Suddenly, a knot formed tying them together. Kyle's eyes went wide. He started to push up. He felt the pads of Chad's paws on his back. Chad was quickly growing hairier. He was becoming a golden retriever again.
Then Kyle noticed his chest tingling. He looked down at his tingling nipples. He had two pair, now a third and fourth pair of nipples. By the time the fifth pair of nipples appeared fine black hairs covered his body. He felt his nose and jaw push out. His ears had migrated up the side of his head, grown longer until they flopped over. He could feel his tail growing pinned between Chad's and his now furry bodies. He was becoming a dog.
Upstairs, Tad was grinning at the tablet in his hands. He doubted Kyle or Chad would have come to his solution. He had decided that the next time Chad mounted Kyle or anyone, the nanobots would transform Chad back into the stored golden retriever form, and then via the sperm, the nanobots would change the bottom into a female dog. If they had red hair, they'd be Irish setters, blondes would be golden retrievers, and black haired would be Black Labs. And the bottom being bred would become a pregnant female.
By the time Chad's knot released, there were two dogs in the basement. A bitch Labrador Retriever Kyle, and a stud Golden Retriever Chad.
Tad decided to knock on Chad's door and show him and Kyle what he had done. He was surprised to see they were up already. He headed down to the kitchen to see if they were there.