teratophelia:

Mermaid gf x Female!Reader: Tidal wave (nsfw)

AT LAST! A sequel to Ceto’s story~

I had fun writing this one! I hope y’all like it as well 💖

Warnings: Biting, unprotected sex, Ceto has a tentadick because personal hcs, probably typos

Enjoy~

—–

My heart soared as I swam through the ocean towards the shore. A grin spread across my face as I broke through the surface of the water and saw her waiting for me.

My mate, my heart.

It had been a year since she moved into the cabin the nice old lady used to live in. A year since I courted her and a year that was filled with happiness.

I swam closer to the shore, happy to see her again.

“You’re here!” I chirped, scooting as close on the shore as I could. She smiled at me and leaned over, giving me a kiss.

“Of course I’m here. I always come, you know this.” She said, smiling sweetly before putting down her bag. I watched her as she laid out a towel and took out food. She’d taken to bringing and eating her meals on the beach with me. Sometimes I would fish for her and the next day she’d bring food with said fish in it. It made me happy, being able to provide for her.

She handed me what she called a “tupperware container” with food and a “fork”.

“I made your favourite.” She said, a hint of red on her face. I smiled my teeth bare and I saw her eyes flicker down yo them. Her face got redder for some reason.

“You’re very sweet!” I said, digging into the food without hesitation. It was a meal with fish I’d caught and land foods. Things she called “vegetables” and “rice”. I had no idea what exactly these things were but she made them so I ate them.

We talked while eating. I listened to her while she talked about a pesky “client” at work. “Clients” seemed like an annoying breed to deal with. Either they were really nice or complained about everything. Part of me was glad I lived underwater so I wouldn’t have to deal with them.

“-and then he just hung up! I spent an hour with this asshole on the phone and he just- ugh!” She sighed, putting her empty container aside. I’d finished mine a while ago and copied her.

“He sounds bad.” I said, putting a hand on her leg.

She nodded, the tension in her shoulders dissapearing.

“Thank you for listening, Ceto.” She said, leaning down and kissing me. I kissed her back, squeezing her thigh briefly.

I noticed her tense up and drew away from the kiss, worried.

“Is something wrong?” I asked, not moving my hand. My mate was even redder and I got worried.

“Everything is fine. I just… Want to try something.”

I tilted my head curiously, watching how she put her hand over mine and slid it up, over her leg, tummy and ending on her breast. My eyes widened a little as i gently squeezed the soft mound.

She was wearing little under her tanktop, it seemed. I felt her nipple harden against my palm and moved my hand so I could run my thumb over it.

She let out a shaky sigh, reaching for my other hand and putting that over her other boob.

“These feel nice.” I said, scooting a little closer so I was sitting as close to her as I could.

“You touching them feels nice too.” She said. I tilted my head and smiled curiously. I removed my hands and took the hem of her top, pulling it up over her head and exposing her chest to me.

My eyes roamed her exposed torso and I felt something odd and primal in me. Something in the back of my mind that urged me to touch her, to taste her.

“Can I-?”

She nodded before I finished asking and i leaned in, my mouth latching onto a nipple, sucking gently. She let out a soft moan, one that hit my core and amplified this feeling i had.

One of my hands found its way on her leg again, sliding up her thigh until my palm rested flat against her clothed sex. I felt her grind against me and i nipped gently at her nipple with my teeth.

“Ceto. Ceto I need- fuck.”

I drew back and saw her face twisted up in need and arousal. My pupils widened and my instincts almost completely took over. I needed to mate with her.

I grabbed one of her hands and guided it to my slit, dipping two of her fingers into my core. She let out a moan as she started moving her fingers in me.

“I have to have you.” I said, my accent a lot thicker. “I need to mate with you. Mark you. Make you-” I let out a moan of my own as she curled her fingers in me. My tail thrashed, my hand that was resting over her crotch pulling away. I removed her hand from my slit and tugged at her bottoms.

“I need to have you.” I said, impatient. She bit her lip and slid off her bottoms, spreading her legs for me.

“How do- Uhm…” My mate eyed me for a second, seeming a little more unsure about everything.

“Mermaids,… We have both.” I said, reaching down. I felt a little insecure as she watched me, her eyes followed my hand as I fingered myself, a small tentacle coming out of my slit. My mate’s eyes widened.

“…oh. Oh that’s-”

I smiled at her, crawling between her legs. I pressed a gentle kiss against her cheek.

“Can I?”

She nodded as I reached down and lined myself up with her, gently pushing in. My mate gasped as I pressed in fully.

The tide seemed to be rising as the water washed over her feet and my fin.

I gently thrusted, pressing kisses up her neck and shoulders, grazing my teeth over the sensitive skin.

My love moaned my name and it sent a primal spike of need running through me. My dorsal fin flared as my thrusts picked up speed and my teeth pressed into her right shoulder.

She moaned under me, legs wrapping around my waist. I felt the water slowly wash over us further but we were both to far gone to care.

I snarled as her fingers tangled in my hair and pulled slightly. She ran her nails down my back prompting me to bite harder. I tasted blood as my hips slammed harder against hers, instincts taking over completely. I felt my orgasm come dangerously close, every fiber of my being wanting to claim her.

“Ceto. Ceto! Cetocetocet-” she cut herself off by moaning. I felt her cum around me, the final push I needed to follow her over that threshold.

I came in her, snarling and throwing my head back. We both came to our senses as a wave crashed over us completely.

“Fuck! Cold!”

I couldn’t help but laugh at my mate as she squirmed out from under me, shaking slightly.

“The water is cold, yes.” I joked. “Just as we got warm.”

My mate gave me a half hearted glare as she walked around on shaky legs and putting her clothes back on.

“It was nice though.” I said, watching her. Her face turned red again.

“It was. Very nice even.” She walked back over to me and kissed me. “I’m going back home really quick and get some warmer clothes. And look after… This.”

She tapped her shoulder where I bit her. The wound wasn’t super deep but she was bleeding a little.

“When I get back… Maybe we can do it again?”

I smiled.

“I’d like that.”