The old man starts chanting his spell, and then pushes Dad into the water. The minute he touches the water, his clothes disappear out of existence.
As he swim around, his legs feel funny. he look at them and realised why. They have joined together, along with his feet, now pointing
outwards. As this happens, they go grey with a white patch on the front.
All the hair on his legs fell out, as they became smooth.
his tail (as you'll may as well call it now) soon grows a dorsal fin.
his fingers stretched and grew webbing between them as his arms shrunk and changed into flippers.
Meanwhile, Dad's skin is changing from the waist up.
his head stretches like putty.
his eyes moved to the side of his head and his vision is mostly taken up by a grinning dolphin snout.
Dad suddenly feel uneasy in the shallow water.
As you look at Dad, you realise he's now a dolphin!! OMG!