As it turned out, the type of swaps that would be happening would be partial body swaps.
Whenever two people swapped, they would exchange one half of their bodies from the neck down "“ either from the neck to the waist, or from the waist to the feet. There would be no seams either... new body parts would meld into the victim's body to look a completely natural of them (no matter how peculiar). Upper or lower body, the half to be switched each time would be the opposite of the previous swap.
For example, if a man became victim to the swap by switching his lower half with that of a teenage girl's, then he would continue the swap chain and his next incident would alter his upper body.
What's more, there would be no limits to the number of times a person may become affected by this swapping chain.
