Jack had gotten the bright idea to go on a vacation during the hottest part of the summer. I was fine with it, though. I loved the beach and the sound of the ocean, especially at night as I drifted off to sleep.

He told me we’d be sharing the house with another couple, and I was fine with that, too. The house, from the photos I’d seen online, was rather large, and there was plenty of room for four people, given its two sides.

When we finally pulled up outside, he said, “It was originally one big house for one big family. Then the kids moved off, the parents got older, and they turned it into a vacation home with two sides to rent.”

Whatever its backstory, the place was gorgeous. I grabbed my overnight bag from the car and eagerly followed him inside. I was craving a long shower, a glass of wine and some quality time alone with my husband.

Naked.

When I entered the sitting room, I was surprised to see a couple across the way. But on second glance, they weren’t in the same room as us. They were actually on the other side of a glass wall.

The woman noticed me first, and we stood there waving a wee bit awkwardly.

Jack laughed and told me, “Yeah, that’s the only weird bit. But there are blinds.”

We both waved to the other couple as he pressed a button and curtains slid into place, blocking them from view.

“That is weird.”

“The owners thought it would be fun for couples who knew each other who were sharing the house.”

I didn’t say anything, but my mind had gone to an entirely different concept with that new information.

We checked out the rest of the place. Afterward, I got my shower, and then exited the bathroom to find a glass of white wine on the bedside table and my husband sitting on the mattress.

I took a sip and then pushed Jack back on the bed. I straddled him and said, “She sure was pretty.”

I walked my fingers down his belly to his belt, which I unbuckled.

“He wasn’t so hard to look at himself,” Jack commented.

I worked my hands into his shorts and found his cock, which was already growing stiff.

“I wonder if they’d like a date night with us,” I said.

I kissed my way down his body to his exposed cock and gently sucked his shaft to full hardness.

“I can certainly feel them out tomorrow. Maybe I’ll ask him if he wants to walk down to the village for coffee, so we can chat by ourselves.”

I purred with his cock still in my mouth, then I continued sucking until he gasped. He was close to climaxing, but I didn’t let him come. Instead, I moved up to straddle him, sank down on his cock and rocked my hips until we both got off. His fingers were stroking my nipples as I came.

Later the next morning, Jack woke me and offered me a hot cup of coffee.

“Up and at ’em. We’ll go to the beach today. Maybe the village for some shopping. You need a new outfit,” he said.

I sat up and took the paper cup from him. The coffee was strong and perfectly sweetened with just the right amount of sugar and cream.

“I do?”

“Yep. You have a date tonight.” He winked. “And so do I.”

I sat up straighter and demanded, “Do tell.”

Jack’s hand snaked beneath the covers. He toyed with my bare pussy, which had already grown wet and aroused, and he pushed his fingers inside me as he spoke softly.

He told me he’d propositioned Peter, our vacation home neighbor, and that we were going to trade spouses for the night — with the curtains to the glass wall open.

I came around his driving fingers, still clutching my coffee cup.

I couldn’t believe it had been that easy, and I couldn’t believe how long that day felt!

Jack had invited Peter and his wife, Coral, to our place for dinner. I’d found a lovely orange and turquoise sundress for our date. Over drinks and appetizers, we talked about life in general, swinging, how this was only their second time opening their marriage and everybody’s ground rules.

We all wanted to be able to see the others. We all would return to our partner when the fun was done. We’d all respect each other. Pretty simple stuff.

I had a hard time sitting still. I shifted in my seat, crossing, uncrossing and recrossing my legs. I was wet, terribly so, and Jack put his hand on my thigh because he knew it.

“She’s turned on,” he said matter-of-factly, “but she’s doing her best to behave. I can tell.”

My husband put his hand between my knees and applied some pressure. My thighs fell open just a bit, but it was enough to let Jack know I wasn’t wearing underwear.

Peter put his hand on Coral’s thigh, squeezed, and then briefly slid his hand out of sight beneath her dress.

“We should trade now,” I said a little breathlessly.

“Agreed,” Coral said.

We kissed our partners and split up. The blinds on both sides of the glass wall were drawn back, and the whole expanse was exposed.

Once I saw Jack and Coral on the other side, I allowed Peter to unzip my dress. He did it slowly, so slowly I thought I’d weep with anticipation.

For every inch he drew down the zipper, he caressed the skin beneath with his fingertip. He pushed my dress up, found my clit with his fingertip and stroked me.

Leaning close, he ground his cock against my ass crack and kissed my neck. Peter faced me toward the glass wall, and I saw my husband — so clever at turning me on — was mirroring his moves with Coral.

I gasped, seeing them was almost like a reflection.

Jack stared at me over her shoulder, doing what Peter was doing, which was pushing his fingers into a willing pussy.

Questions raced through my head. Was she as wet as I was? Was she tight? Did she feel like she was going to come?

I moaned and pushed my ass back against Peter’s cock.

He stepped back, and I heard the sound of his zipper. Jack was undressing, too. My husband’s hard cock jutted out as he pulled Coral’s dress over her head.

At nearly the same instant, Peter pulled my dress up and off.

He gently kissed the back of my neck, massaged my breasts and roughly dragged his teeth along my shoulder until I shuddered.

His cock pressed insistently between my thighs.

“Put it in me,” I groaned. My pussy was practically dripping.

Peter banded one arm across my breasts and the other across my belly, anchoring me. Then he slid his cock into me quickly.

On the other side of the beach house, Jack mimicked Peter’s motions. He squatted a tiny bit so he could thrust into Coral hard. Her face showed what I always felt when he entered me — undeniable pleasure.

Peter dropped one hand to my side. He slid it around the front of me and parted my nether lips. He stroked my clit, his finger wet with my own juices.

He bit the back of my neck, and I came suddenly, watching Jack touch Coral in the same way.

She watched me as I climaxed, and then she lost her own control and came. Her hands flew up to clutch Jack’s arm, which was tight around her chest.

We held still for a moment, gazing at one another through the glass.

I took the lead, moving us on to the next step. I dropped to my knees and pushed Peter’s hip until he stood sideways with the ocean at his back. I could turn my head slightly — gazing with my peripheral vision — and see Coral sucking off my husband while I blew hers.

The scene turned me on to no end. I slipped two fingers into my pussy and moved my digits, driving them deep and flexing them. I ground my clit against the heel of my palm as I sucked Peter’s cock.

I pushed my lips down to the root of him, drawing on him as I withdrew slowly. I pulled his dick out of my mouth. Working his slick length with my fist, I licked and sucked just the tip of him until he went wild. Peter then pushed his hand into my hair, threaded his fingers along my scalp and fucked my mouth.

When I heard the distant but distinct groan from my handsome husband, I glanced over at him. His eyes were on me and his hand was in Coral’s hair as he fucked her mouth slow and steady and she fingered herself.

My digits curled deeper inside my pussy, and I came with a shudder.

Not long after that, she appeared to get herself off, too.

I pulled away from Peter’s prick.

“Time for the grand finale,” I said.

My husband was on the same wavelength. He was already moving Coral into position. Her hands were planted on the sofa arm, her ripe little ass raised in the air.

I positioned myself in just the same way — mirroring them in a room that mirrored theirs.

I rested my palms on the fake leather sofa and pushed my ass up and back. I felt Peter’s hands clamp around my hips, holding me tight.

He ran his cockhead along my slit, and I watched Jack do the same to Coral.

When Peter entered me again, I sighed, dropped my head for a moment and focused on how good he felt fucking me. The push and slide of him. The way his thick fingers curled against my flesh. The way his hips butted against me as he thrust deep. My senses were in tune with the deep sound of Peter’s breathing, and I sensed his escalating pleasure.

His fingertip tickled across my rear hole — then slid along my ass — and he groaned.

“You feel so good,” he told me

I nodded. He felt pretty good to me, too.

I thought I heard a low groan and looked over to see my man screwing Coral for all he was worth.

The connection spurred my pleasure. There was a constant bond between us that seemed even more potent during that intimate moment.

I pushed my hand between my thighs and worked my clit slowly, but suddenly Peter was pounding into me faster. Every thrust meant his cockhead kissed the neediest places inside me. The sensation was sucking me down as my fingers danced across my clitoris, and I came, crying out loud and long so Jack could — hopefully — hear me.

My husband banged Coral, fucking her hard as he reached his climax, and then she was also trembling with pleasure under his hands.

We ended the night with a few drinks and lots of laughter. We all agreed our hookup was unexpected, but it cemented the fact that our getaway would be the most memorable of vacations. The four of us also agreed we’d meet up to enjoy each other’s company again, even after our summertime fun ended.