Below The Surface
Eichi Tenshouin x Reader
Your family thinks you're just a big fan of late night swims. In reality, you're meeting someone.
Contains: NSFW, Merman Eichi x Human AFAB reader, underwater sex, Very mild dubcon, breeding, cockwarming
NSFW UNDER CUT MINORS DNI!
Dolphins, a well known animal that enjoy visiting the area of your parents beach-house. Usually you wouldn't agree to joining your parents on their yearly trip to the beach over spring. But your job has been working you to the bone and honestly... The escape sounds nice, even if you have to deal with your parents. The hot days reigned in and the cold nights followed and your mother was grating on your nerves. There was only one escape that wouldn't cost you a plane ticket.
A late night swim... that would later become one of many, and a yearly ritual.
Everybody knows dolphins are sexual creatures, but you had never met one as breathtaking as him.
Being only half dolphin and half a lean man with pale blonde hair and striking blue eyes. And being a male dolphin, he had his way with you, dragging you into the water and pulling your swimsuit off, roughly fucking his cock into you. The struggle was only at the beginning. You had initially assumed he was trying to drown you.
Two years later, you're back at the beach again, slipping out at night to run down to the beach. As soon as you reached the shoreline, the initially skimpy swimsuit seemed to just fall off your body at the rate you were stripping. Wading a few feet out into the water, a familiar fin popped out from the water, followed by a boy.
"Hi." your greeting was curt, hoping the moonlight wouldn't showcase your embarrassed face.
"It's nice to see you again, Princess." Eichi had been assuming you were a princess of the land, similar to how he was the Prince of the sea. You didn't want to tell him otherwise.
"Are you still sure about this?" If anything, you should be the one with doubts, but you still asked him.
"I assure you, there has to be some way I can make an heir with you. Even if we are different species, we must be similar enough."
He was always so obsessive. He always mentions how he wishes you would stay year-round. How he loves you.
"Nothing stops us from trying again." You felt your cheeks heat at your own words. But the way his eyes lit up was priceless. And yet again, he's grabbed you, dragging you deeper into the ocean. Despite his beauty, he is still an animal. He takes a sharp grab of your hips and shoves his cock inside you, setting a brutal pace, biting onto your neck as he slams his length deep into you.
Water occasionally fills your mouth, the harsh taste of the salt choking you and making your nails dig into his back.
"You WILL give me an heir." He muttered into your neck, and with a few harsh thrusts, he buried his cock into the hilt, shooting ropes of cum into you.
You both breathed heavily, panting. His hold was firm as he held you there, cold eyes watching you cough and spit out water. He refuses to pull out, wanting to make sure his seed has a chance to take.
"You're going to meet me again tomorrow, correct?"
"Ah, sure, but I have to go home soon." He seemed angered at your response. Sitting with you, silent for a few more minutes before delivering you to shallow water and swimming off.
AN: Dolphins tend to have sex for pleasure as well, but I liked the idea of their more rough, forced mating rituals.