The old man smiled and handed tom a ring.
He then said "This ring is an item of powerful magic. If you wear it you can swap any two people but not yourself. The swapped people will keep their old clothes and belongings and will notice nothing wrong... at first."
"At first?", Tom asked. "What happens after."
"Well they will start to notice their clothes fitting odd, body parts having different proportions, etc. They will justify at first but their is only so much their delusion can take before shattering." The old man stated.
Tom purchased the ring and snuggled into bed with his girlfriend. He pictured her and his best friend swapping just before he drifted off to sleep. He awoke to find his arm around a large male body dressed in a silk nightgown.