Long ago, the owner of a magical shop was bored. Instead of using his powers to ruin the lives of others, he decided to spend a night drinking on the town. He became completely trashed as he galavanted across the town, haphazardly using his magic at will. As he drove his new Ferrari that used to be a homeless man, he pulled up to a random spot in the farmland of New England, and then began to chant.
Suddenly, a building appeared out of nowhere, and the magical owner drove off drunkly laughing. This building was the magic motel. Despite the name, it was a large, lovely building with three stories and an indoor swimming pool. It was also a building formed only to cause transformative chaos. Bestowed inside its walls is the power to transfer traits, both physical and mental.
Those who stay at the magic motel, begin to change as anything could be swapped between themselves or the other guests. Gender, age, relationships, species, intelligence, weight, or even lives are just some of the things the motel could swap. They happen sporadically, and craziest of all, no-one notices a thing.
By the time a guest leaves the motel, they'll think they are perfectly normal, and reality itself will alter to accommodate the changes. Now the only question is, who is stopping by the magic motel?