My wife, Jill, and I have lived next door to Hank and Rebecca for about six years. During that time, what started as a friendship blossomed into something bigger and better. They were always the type of people we could go to for a cup of sugar in a pinch, and eventually, we started to lean on one another in additional ways.

In truth, we operate more as a unit than as acquaintances. Two nights a week, we take turns cooking dinner for one another. One of those nights we host them at our place, and for the other, they welcome us at theirs. Then at the end of the meal, we indulge in something sinful for dessert — that is to say, we swap spouses.

On the nights that we host, after the last plate is cleared, my wife goes next door with Hank, and Rebecca stays behind with me. When they host, Jill stays behind at their place while Rebecca accompanies me home. It’s a fun system we’d devised that’s done wonders for our marriages and our friendship. Week after week, we explored every erogenous zone on our new partner’s body, actively learning how to get them off.

Much to our joy, our bedrooms also share a wall. That makes for an exceptionally good time. We can usually hear our spouses going at it, adding fuel to the fire of our own filthy coupling.

Jill is a screamer, always has been. When Hank really gets going, my wife’s staccato gasps, groans and shouts pass through that shared wall easily. The noises spur me on as I attempt to coax similar sounds out of Rebecca.

Although I’ve learned screams aren’t always the true measure of a woman’s pleasure. Rebecca isn’t quite as vocal as Jill. But she certainly makes me aware of her entrance into ecstasy. While my wife’s orgasms are highly auditory, Rebecca’s are more physical. It starts with her hands. As she creeps closer to climaxing, her fingers flex and she fists the sheets, often twisting them between her digits as she rides the waves of her rapture.

But it didn’t take me long to figure out how to turn Rebecca’s physical response into an audible expression her husband could hear. You see, Rebecca loves getting fucked from behind. She often crawls onto the bed and remains on all fours, wiggling her ass in invitation.

While I loved fucking Rebecca doggy-style, lifting her into a kneeling position was transformative. I like to arrange her so her knees are hip-width apart and her hands are planted on the wall, providing stability while I enter her from behind.

Last night was no exception. The second Hank and Jill closed the door behind them, Rebecca scurried off to the bedroom.

“Come on,” she called out. “I’ve been dying to have you inside me.”

The feeling was mutual. My nights with Rebecca are a welcome release. Her playfulness never fails to arouse me.

In an instant, I felt the tingle building in my balls as my dick sprang into action. My eager member tented my pants, demanding to be set free.

“Knees on the mattress. Hands on the wall, baby,” I shouted to her.

By the time, I joined Rebecca in the bedroom, the muffled sounds of Hank and Jill’s fucking were evident. The slap of the headboard against the wall was a rhythmic, knocking noise.

“Let’s give them a run for their money,” Rebecca said. “Let Hank hear how hard you make me come.”

“With pleasure.”

I climbed onto the bed to join Rebecca and crawled up to kneel behind her. Rebecca loves having my hands skimming over every inch of her body, mapping her every dip and curve. For that reason, I often enjoy toying with her, getting just close enough that she can sense my presence while I make her wait for skin-on-skin contact.

That night, however, my dick couldn’t wait. Like a homing device trained to pinpoint Rebecca’s pussy, it immediately sought its target and smacked against her ass.

Rebecca whimpered. Even a teasing tap was enough to send her into a frenzy. She slapped her hands against the wall and groaned, “Oh God, give it to me!”

Happy to oblige, I reached over to the night table and grabbed one of the condoms I’d laid out earlier.

While I was busy fumbling with the foil packet, Rebecca continued to slap her palms against the wall.

“I want you now,” she demanded, wagging her ass at me.

In between each word, the hollow thunk of the headboard hitting the wall next door sounded. It served as a strong, heavy baseline, setting the perfect beat for me to fuck my lover.

My eyes zeroed in on her jiggling cheeks. I knew that Rebecca was growing impatient, but damn did I enjoy the view. My dick twitched at the sight of every ripple that rolled over her skin as she shook her butt. While my wife boasts big, gorgeous breasts, Rebecca was small titted but carried a wide load on her back end. Her tiny waist gives way to sizable hips, creating the most delicious pear-shape I’ve ever seen.

Two weekly rendezvous were hardly enough. My appetite for Rebecca had become insatiable. I bent down low and took a bite of her luscious backside.

The excited squeal that fell from Rebecca’s lips was almost as satisfying as the feeling of my teeth sinking into her pillowy soft ass cheek.

“More,” Rebecca groaned.

My lips were already so close to her asshole, so I thought: Why not take a taste?

I kissed my way over the curve of Rebecca’s ass, working my way down to the valley that separated her cheeks. I wiggled my way in between and used my tongue to seek out the puckered skin circling her asshole. Its glistening pink center dared me to dip the tip of my tongue inside, and I did.

“Oh, yes,” she said with a sigh.

Rebecca loves when I eat her ass. It never fails to drive her wild.

The moment my tongue breached Rebecca’s backdoor, she pounded her fists against the wall. Her hips rocked back, shoving her ass in my face and urging my tongue even deeper inside. I gave it a wiggle, and she squealed and jerked.

I laid one hand on her thigh to hold her steady, then I slipped the other around to her front to play with her clit.

Rebecca hit the wall so hard a nearby picture frame rattled, and I swore I could just make out an encouraging “yes” from next door.

Another brush of my thumb over Rebecca’s clit caused her fingers to flex, making her manicured nails scrape against the wall. The sight and sound turned me on.

She wasn’t the only one who was eager to come. Goosebumps rose all over my arms and legs, while my balls grew tight in anticipation of a big release. I wanted to come while buried deep inside Rebecca’s pussy, so I decided it was time to switch things up.

I rose to my knees and hooked my arm around Rebecca’s waist, pulling her hard against me. My erection nestled between her thighs. She was soft and hot — the perfect remedy for my throbbing erection.

My other hand still rested near her clit. I fanned my fingers to pull apart her folds, then I slipped a single digit inside her pussy hole.

Rebecca smacked the wall and tossed her head back as she rode my finger with unbridled enthusiasm. Her pussy seemed to pulse around my digit, making my dick throb.

I sought out Rebecca’s sweet spot, and when I knocked my finger against it, that girl gushed pussy juice. Then I pulled out and eased my dick into her sopping wet hole.

Rebecca’s cunt was a snug fit. Her pussy walls convulsed around my shaft, massaging me thoroughly with their orgasmic spasms.

Fuck, it was hard to focus while her insides gripped my dick. I urged myself to concentrate on her pleasure first — especially since hers undoubtedly fueled my own.

My fingers on one hand were slick with her nectar, and I used them to stroke her hot little bud.

Once again, Rebecca’s delicate hands pounded against the wall. Every knock coincided with another spasm inside her pussy. Her walls pulsated around me, drawing me into my own fit of ecstasy.

Unable to hold back, I let out a long, guttural groan. Pleasure washed over me in waves, dragging me under until come spurted from my cock. I filled Rebecca up with my load. Even as my vision blurred, I couldn’t stop plowing her pussy.

Finally, we both stilled and ceased panting long enough to once again hear our spouses having fun next door. Rebecca shot me a saucy look when a loud wail pierced the air — a sure sign Jill had reached her peak. Rebecca stroked a finger over my semi-hard dick and said, “Time for you to make some noise.”

Then she took my dick in her mouth and sucked me until I screamed.