Couples' Campout (Swinging couples erotica, Voyeurism, Caught having sex, Double Penetration, Boyfriend gets blowjob by a guy, Sex while camping, Menage au quatre)

An erotic swinging couples' tale featuring characters 18 years and older...
Greg and his girlfriend Tanya are treated to a hot nature show while out on a hike--they spy on a couple who are indulging some private fun in the great outdoors. The sight is so stimulating that they can barely drag themselves back to camp before answering the call of the wild. Little do they realize the other pair is about to turn the tables--and offer a night of four-way thrills by the campfire.

Now, both Tanya and Melody were licking and sucking on Hunter's dick, which jutted up from between his powerful thighs. It glistened with saliva, an inviting sight. So was the moment the girls stopped tasting his pole to taste one another. Their kiss shot my cock into overdrive, and it jerked frantically.
Unwilling to miss any more action, I got up and kicked off my pants before moving over to the others. I stood in front of them, playing with my cock, and Hunter's dark eyes reflected firelight as he stared at it. My dick had never gotten any complaints, long and thick enough to drive home nice and deep in a woman's cunt. Tanya moaned as she tongued Melody, and they reached down to grab Hunter's dick while they explored each other. Melody's free arm wrapped around my hairy thigh, sending tingles of pleasure into my balls. It was what Hunter did next, however, that shocked me.
With a gruff little moan, he reached out to push my hand away from my cock, and he wrapped his fist around it. I let out a sort of hiss-gasp of pleasure at the feel of his slightly rough hand on my pole. Tanya must have heard my moans, and she pulled away from Melody to watch. A wicked grin crossed her face, one I matched when Melody's hands began roaming beneath Tanya's shirt.
I felt Hunter pulling me toward him, and let him tug me against his side. I gaped at the surreal sight of him leaning his head close to flick his long tongue over the tip of my cock. I stiffened with a shudder that left tingles all along my spine. I'd never had a man touch my dick, let alone suck it, but going with the flow seemed to be the order of the day. Besides, I'd secretly admired Superman from afar. Now was my chance to experience him up close and in person.
My legs rubberized a little as his mouth took in my shaft, and the earth seemed to twist a little farther on its axis. The girls had pulled off each other's tops now, and they were rubbing and tugging on one another's perky nipples. Their expressions as they eyed one another were hungry and downright devilish, hardening my cock even more. Both kept throwing glances at us men, too, clearly enjoying the fact that I was getting sucked off by another guy.
I won't lie--I absolutely loved the feel of Hunter's mouth on my dick. It seemed clear that it wasn't his first time sucking dick, either. The rough grain of his unshaved skin brushed against my pubes as he took my shaft in, all the way to the root. I shuddered in delight and slid my fingers into his dark, silken hair, greedily drawing him deeper. He indulged me for a bit, and I watched the women return their attentions to his cock so we were both getting sucked in tandem. I shuddered in delight as I felt my balls tense, and orgasm began a steady climb.