My husband and I have kept our marriage strong by having what we call “love adventures.”

We have a vacation home in the tropics, and we both love to scuba-dive. This summer, our love adventure took place underwater.

As a surprise, Trent bought me a “monofin,” which has room for both feet right next to each other, and asked me to practice learning how to swim underwater in our pool doing the dolphin kick.

I started swimming naked underwater, wearing only the monofin, and I knew Trent really liked watching me. I loved it too, especially when the water rushed past my shaved mound.

Trent asked me to buy some blue/green spandex material and design a mermaid outfit — one that would allow me to wear the monofin inside it. He also wanted the costume to have a vertical Velcro closure on the backside, just beneath my ass. I realized what love adventure he intended, and thought it would be pretty cool.

It took me nearly a week to sew the outfit. The slit was eight inches long and barely noticeable when closed.

I placed the monofin inside, stripped naked, and slipped on my mermaid outfit. It was supertight around my waist, hips, and legs, but it looked really sexy. It felt like I had a second skin.

When it was time for our vacation, we sailed our 30-foot boat to one of our favorite islands. There were no other boats around, so I removed my bikini bottom and my top, slipped the mermaid costume on, and reached for the handheld air bottle that we sometimes use on our dives.

I kicked leisurely under the boat with my arms at my sides and one hand holding the air bottle. I felt unbelievably sexy, and my nipples were hard. I couldn’t help but touch them. I heard a splash and turned to see Trent wearing his scuba tank, fins, and mask, but no swimsuit. His cock was already hard.

I took my first breath from the air bottle and swam toward Trent just as he reached the sea floor. I kicked toward him and, in one smooth motion, took his delicious cock as far down my throat as I could. I wanted his cock in my mouth, and I wanted it as deep as I could take it — which is pretty deep. I plunged back and forth with long strokes of my lips and tongue.

Then I released him, swam off a few feet, and took another breath from my bottle. Trent swam after me, but I easily stayed ahead. I circled and swooped around him while he stayed motionless. While behind him, I dove under his legs, twisted around, and came up with my face toward the surface. Then I took his cock into my mouth again and continued to kick with my mermaid fin. We were only connected by his thick, luscious cock. I kicked just enough so that we were moving through the water.

Trent leaned back. I moved with him, still keeping his manhood in my mouth. Trent could easily see this bare-breasted mermaid giving him the underwater blowjob of his life. I knew I could make him come this way, but I also knew he wanted to try taking me from behind.

Doggie-style is my favorite position because I can play with myself while Trent is thrusting hard and deep into my pussy. I have the most intense orgasms this way, and that’s what I wanted now.

I turned my backside to him and invited him to take me from the rear. I felt the tab being pulled back and then his thick cock thrusting between my legs. The slit was perfectly placed for Trent to thrust into my pussy. But I had a surprise for him. While facedown, I bent over double and made it clear that I wanted him to take me in the ass. I trusted Trent to be gentle and not hurry.

I relaxed in the warm caress of the sea as Trent eased his cock slowly but steadily into my asshole. When it almost reached its limit, I pushed back hard and we both moaned, releasing huge bubbles of air.

We thrusted back and forth. I found that I could finger my pussy while Trent was buried in my rear. While we floated horizontally, Trent bent over me with one hand on my shoulder and played with my breasts, keeping his cock buried to the hilt in my ass.

He was ass-fucking a mermaid who couldn’t get enough. It was sheer delight, and our coupling got even more frenzied. With each thrust, my mermaid tail moved us farther from the boat.

I didn’t want it to end, but I started to climax, my head facing the surface. I was rubbing my pussy, arching my back, and flipping my mermaid tail upward so that I was almost in a V. This caused my ass to tighten even more on Trent’s cock as he straddled my body.

When my climax hit, I couldn’t help but scream as bubbles poured out. I couldn’t see Trent, but I heard his deep grunting and felt his warm seed being pumped deep into my ass.

I wanted him to stay inside my body, but he gently pulled out. We shared the air from his scuba tank as we surfaced. After we kissed, I asked him if he liked fucking his mermaid. In response, he asked me when we could do it again.