A possible summary is:
Cody tries to turn his doll Ken into a human with his machine, but accidentally turns him into a cat. He and his friends Junior and Joseph try to fix the machine and find Ken, who has swapped places with Roy's cat. Joseph also swaps places with a bag of Cheetos. They eventually get Ken back, but not before licking Roy's hand.
Here are the key facts extracted from the text:
1. Junior has a machine that can swap places with things.
2. He tries to turn his doll Ken into a human, but Ken swaps places with an orange cat.
3. Joseph volunteers to test the machine, but he swaps places with a bag of Cheetos.
4. Cody tries to fix the machine by throwing it around, but it doesn't work.
5. The orange cat belongs to Roy, a cool kid who went to the Super Bowl for free.
6. Roy comes to Junior's house looking for his cat, and he touches Ken, who swaps places with him.
7. Cody and Joseph are obsessed with Roy's scent and try to lick him.