Johnny decided it'd be best to have his tf remain a secret. He wouldn't tell anyone, not even his wife.
But he reckoned without his son Ryan, a boy with blue eyes and brown hair, suddenly coming into the bathroom to brush his teeth.
He was gobsmacked to see his dad's feet.
and, his jaw dropped when he was his dad's hair, and beard - it was seaweedy green instead of chestnut brown.
"Dad?" he said in shock. "What happened to you?"
Johnny didn't know what to say. He wanted to deny his changes, and tell his son he was fine, but who was he to lie to him? He was his son, who had just found out about his dad's piscine change.
"Ryan, son." Johnny said, "I have something to tell you."
"But," he added, "If I tell you, do you promise not to tell anyone?"
"Do my friends and mom count as 'anyone'?" Ryan asked.
Johnny nodded grimly.
"I do, dad. Sailor's honour." Ryan said, crossing his heart.
Once Ryan had brushed his teeth, Johnny and him went downstairs for the conversation.
"Ryan," Johnny said, "You know how much i love my job of being a sea captain."
Ryan nodded.
"And you know how I always relax after work, before dinner?" Johnny added.
Ryan nodded.
"Well, today, I was relaxing, and I was wondering what it'd be like to be a fish, swimming around carefree in the ocean."
"Well," Ryan said. "You always do that, Dad. I don't blame you. It's what you do."
Johnny smiled.
"Yes." he said. "Then I went for a paddle in the shallow patch of water near my boat's dock on the beach shore near the house. after a while, my feet suddenly changed, and now, they're like this." To prove this change, he lifted up his webbed feet to show his son.
Ryan felt the gelatinous webbing inbetween his dad's toes.
"It's true." Johnny told his son. "I'm turning into a fish."
"Don't worry, Dad." Ryan said. "I promise to keep your secret."
---
Ryan was true to his word. He never told anyone about his dad's piscine changes - not even his mom, or his friends.