When Gary had set the program he did not see the spot where the Chronivac had said mermaid when he had set it to turn himself into a half fish.
So when he arrived on the beach he was a little shocked when his body started to change into that of a woman. His hands went to the new breasts as they started growing out of his chest and all he could think was "OH SHIT" as they got bigger and bigger.
While Gary's mind was wondering when his new large breasts were ever going to stop growing he had missed most of the other changes as they had happened quit rapidly, until he felt his shorts slip down his legs. Looking down, having to hold his breasts so he could look at his lower body he started to see fish scales forming on her new legs.
That's when she looked up to see how far up on the beach she actually and began running for the water only too have her legs give out and fall face first into the sand. Gary turned her head to catch the last of the transformation as her legs changed into a fish tail.
Gary then started to drag herself toward the water.......