Johnny could see the sun was slowly sinking. "Ah well," he said. "Cmon, son. Time to go home."
Johnny and Ryan swam back to Johnny's island home.
They swam right down to the bottom of the sea, and then back up to the surface.
They heaved themselves onto the beach, and then, they saw to their surprise, that their fishy changes were reversing themselves.
Their hair changed back to it's normal colours, their tails became legs, the scales faded, their swim shorts magically reappeared, and their feet lost the webbing, regained the toenails, becoming normal human feet again. "We're normal again." Johnny said. He did feel a bit sad, but was glad to be human again, as was Ryan.
They dried off, changed into their clothes and headed home.