Chapter 4

“I don’t see this friend you speak of, Human.”

Sinthia and I had left her village and were walking down the coast of the lake I was taken from. I knew Kira hadn’t been captured by the ogres and probably fled into the water. The sun was high in the sky and the sand was burning the bottoms of my feet. Sinthia seemed to be faring better, being used to the warm weather.

“Maybe she’s hiding.” I said. “After watching me get dragged away I bet she’s keeping her distance from the shore.”

“And you said she is a mermaid?” Sinthia asked.

“Yes, a mermaid.”

“A rare creature to come across. How did she end up on land?”

“That’s a bit of a story. You see-”

“Hey!” A voice called from the water.

“Kira?” I turned my head towards the familiar voice.

Kira was waving at us from the water and smiling.

“Kira! You’re okay!” I waved back and walked into the water.

As she jumped through the water, her mermaid tail glistened in the sunlight. She was moving quickly and smoothly, her breasts bouncing with every movement. She popped her head up from the water and swam towards me.

“I’m so glad you’re okay.” Kira said and swam around me. “I was so scared when those Ogres took you away. I’ve been waiting here since, hoping you would escape.”

“Thanks, Kira. It’s great to see you.” I smiled and patted her head.

“Who’s that green girl with you? Is she a baby ogre?” Kira asked and hid behind me.

“That’s Sinthia, she’s a goblin.” I explained. “She used to be an ogre, but I filled her with my cum. It cured her of her deadly sickness, and caused her to transform into this new form. I’ll give you more details once we get to shore.”

“I can swim up to the shore and come out for a bit, but--” She looked down at her tail.

“You’re tail doesn’t turn into legs anymore?”

“Just like you said. After 12 hours the magic of your cum wore off. I can’t change into a human anymore.”

“Did you say 12 hours?” Sinthia called out with a panicked voice.

“Yes, my cum’s enhancement is temporary effect.” I turned and said. “It’s only a 12 hour period, then the magic wears off.”

“But I don’t want to be 600 pounds again,” She said sadly and fell to her knees.

I started walking back towards Sinthia and Kira swam beside on her back and into the shallow water.

“I want to be able to walk on land by your side,” Kira said softly.

I sat down at the edge of the water between Sinthia and Kira.

“You want to come with me, Kira?”

“Of course, silly.” She giggled while she rolled in the shallow water and wet sand. “You’re the first human to be nice to me and I’ve been living all alone in this lake for over a year. It’s time for a change.”

“And Sinthia already said she was coming with me.” I leaned back and rested on my arms behind me.

“Yes,” She nodded. “I will repay the debt I owe for curing my illness.”

“And you both want to keep your enhancements. You don’t want the magic to wear off.”

“Yes.” They both nodded.

“Well then I think we all know there’s only one solution,” I laughed.

“Oh really?” Kira smirked and flicked her tail.

“What would that be?” Sinthia asked.

“I’ll have to fill your wombs with cum every 12 hours or less, so that your magical enhancements stay intact.”

“Every 12 hours,” Sinthia’s orange eyes grew wide.

“We’re both going to have sex with you every 12 hours?” Kira gasped.

“That’s the only solution I could think of.” I shrugged.

“If it means I can keep this form,” Sinthia nodded.

“And I can walk as a human,” Kira smiled.

“Well Sinthia is at about the 6 hour mark. So if I fill Kira now we will have a good rotation going.”

“You mean,” Kira blushed and looked down at her body. “You want to right now?”

“That’s fine with me.” Sinthia said and stood up. “I’ll go see if I can find any supplies close by.”

“Good idea.” I nodded and she walked away.

“Alright, have fun.” She waved and walked away.

“Now, Kira,” I turned to her. “Are you ready for this?”

“Uh,” Kira blushed. “I know it’s going to hurt, but after this you can use my human clam instead.”

She pulled open her scales and reminded me of the tiny clam I had to penetrate. I knelt down around her tail and felt the waves of the lake splashing against my legs. I leaned over her and held myself above her, my face staring at hers.

“Thank you for coming back for me,” She whispered.

A few moments later the beach was echoing with screams of pleasure but mostly pain as I slammed my cock to the very back of her naturally half inch wide hole which had been stretched over double. Her small clam was forced apart by the opposing girth of my cock. Her tail was thrashing around in the shallow waves, covering us with water.

“Oh Poseidon wrath!” She screamed as I slammed against her cervix. “You’ve broken my clam open. Fill my tailhole with your cum!”

“Here it comes,” I grunted and felt my body begin to shake.

I pumped even harder knowing it may be the last time I get to experience such a tiny hole. My cock was pulsing but I held the feeling back so I could continue using her for my pleasure. I had been holding the pressure back for a while and knew that my release was going to be huge.

“Oh no!” She moaned and her entire body tensed. “I’m gonna cum!”

Her tight clam was contracting and squeezing my cock. It felt like a python trying to squeeze the life out of its pray. My dick was throbbing and the pressure was becoming too much to hold back. I pressed myself to her depths as she began experiencing her orgasm. Her tiny clam walls were crushing my cock, and it was a feeling I could only describe as heavenly.

My dick finally couldn’t take anymore and burst against her cervix. Once again my cum had nowhere to go with her climax squeezing me tighter than a vice. My balls were pumping the hot sticky semen into her tiny body. Her entire body was trembling and shaking as she rode her orgasm. Her arms wrapped around me and dug into my back while she gasped and moaned. Her tail was still slapping against the waves and spraying us with waves of salty water.

Her tail began to glow, just like it had done earlier when she became a human. This time it was a soft blue color. She looked up at me and gave me a wide smile and her tail wrapped around my body. She was still shaking and letting out soft moans as her tiny body continued to take in my cum. I knew the transformation would take over and I started fucking her hard and fast to keep my cum flowing.

The light faded and she screamed as I continued to pump into her tight clam. With the pressure against me it only too a second to realize she still had a tail. I looked down and saw the shimmering scales, the long slender body and the beautiful blue fin at the end.

“It’s too much,” She panted and as her stomach expanded more. “My belly is going to pop. Oh Poseidon.”

“Shit,” I yelled as I realized what was going on.

I grabbed onto Kira’s shoulders and rolled us out of the water and onto the sand of the beach. Once we were completely out of the water her tail flashed quickly and turned into two legs. Her body was covered in a thin layer of water, making her body look like it was glittering in the sun. I pushed off the sandy beach surface and pulled my cock out of her.

“There we go, little fish” I said and looked down at her exhausted body.

“Oh fuck,” She panted.

Her legs were spread wide, and her tiny pussy was stretched open. I watched as the cum started to pour out and form a small puddle between her thighs. As the cum came pouring out her belly deflated, returning her body to its petite state. Her chest heaved up and down as her lungs took in the oxygen she had been missing.