Chapter 20

I was balls deep again inside Becca before I realized that Mom and Dad ... and Stan and Kelly were still watching us. Or were they ... wait ... they were fucking again, too! Stan was buried inside Mom and Dad inside Kelly. Judging from the way that they went at it, it was clear that this particular swap was meant to make the first serious attempt at cross-pollination. I was active in humping my own sister before I knew it, turned on even more by the thought of putting a bun in her oven, too.

“Do it ... breed your sister! Fuck her good and hard! Knock her up!” Dad encouraged me, while Mom winked at him and Kelly pushed her hips back at him.

Stan just grinned widely as he put it deeper inside Mom’s gash now.

“Breed me, too! Give my kids a baby brother or sister!” Mom egged Stan on as he pounded her even harder.

“Do me ... seed me! Give me twins!” Kelly prodded Dad, knowing what a turn-on that thought must be.

“Imagine Simon breeding Carly and Marley, too!” Mom made things even worse for us as she pressed her hips back at Stan.

“Fuck ... yeah!” Stan groaned as he screwed Mom even more ruthlessly now.

“That’s fucking hot, ain’t it?” Becca added her voice, “imagine I’m Carly and Marley, bro! Knock. Me. Up!”

“Yeah, picture the families even more entangled!” Melanie whispered in my ear before she ran her tongue across my sister’s butthole.

“Damn, that’s steamy, babe!” Dad told Kelly, who giggled as she took him all the way in all over again.

Somehow, the fantasy of breeding two sultry biracial girls really did it for me, of course. If I was horny as fuck before, it was even worse now. The way that Paige and Heather made out for me while Janine sucked my balls just made it wilder. That they were doing it for my benefit became apparent as they winked at me. Sure, they had genuine affection and lust for each other, but they definitely played it up to turn me on, given the way that they flirted with me the whole fucking time they sucked face with each other.

When Melanie and Janine switched places, it just got worse, even as Stan pumped Mom even harder and Dad bottomed out inside Kelly’s twat. My fiancee even licked my taint and ass before she resumed sucking my balls, even as Janine stuck her tongue down Becca’s throat and let her taste her own crack. Becca tightened with a vise grip by now and almost forced me to expel the contents of my sack right there. When Melanie and Janine made out in front of us, Becca creamed herself and I erupted inside her wonderful cunt.

Becca then pulled me in very close and let me watch her position herself in a way that was meant to ensure that my seed did its job. Then she began sucking my cock for several seconds, as if she was insatiable for it, just as Stan came inside Mom at last and Dad did the same for Kelly. The two of them swapped now, Kelly cleaning Mom’s juices off her hubby while Mom did the same for Kelly’s and Dad.

“I can’t wait until I’m knocked up by Joe! What about you and Stan, Tracy, baby?” Kelly dared to voice her fantasy of extramarital procreation again.

“Talk about making us all fluid-bond, right?” Mom answered with a kiss straight to her girlfriend’s lips.

“Serious blended family there, right? What a tribe! You know that we’ll be stuck with each other by then, eh?” Kelly unwittingly revealed her Canadian heritage, “oh, yeah, I’m really from Alberta, in case you wondered. Calgary, to be precise.”

“Honey, you’re my Canuck vixen, so that’s all I care about, okay?” Stan teased her a little as they made out and so did my parents.

“Want to watch me rim your wife?” Kelly offered Dad as she dove in and spread Mom’s cheeks to eat her plump ass.

“You have to suck both dicks afterward and let me eat your pussy!” Mom insisted before she started squirming from the analingus.

“Deal!” Kelly grinned as she completely gave into her lust for Mom’s bottom, “I could lick this cornhole all fucking night long! It’s yummy as fuck!”

“That’s how I feel, too, about Janine’s tushy here!” I declared as I parted my slave’s buns and started munching on her booty.

Janine began screaming in Aramaic, Arabic, and about forty other languages and dialects as I refused to stop licking her bum. This was her reward and she knew it, though her ass was tasty enough to merit the rimjob. Melanie, for her part, got to work on Becca, matching every lick of Janine’s butthole with one of her own to my sister’s. Paige and Heather fell deep into a steamy sixty-nine and that was worth watching in its own right.

Dad and Stan just watched with their tongues out for a moment, utterly astonished at the lustful way that we all operated right then. They were no slouches, of course, and that proved even truer when Stan surprised Dad by popping his dick into his mouth. Dad was about to resist, but then he began to realize something that made him give into his carnal pleasures and let Stan suck him good and hard. By the time that Stan had Dad on all fours and lined up behind him, it was too fucking far too late.

How did Stan get it up again so damn fast, anyway? Before anyone realized what was up, Dad’s manhole was lubed up, Stan’s hands gave him a reacharound, and his anal cherry was gone. In a few short strokes to adjust, Stan was balls deep up Dad’s rump and tickled his prostate with that rather impressive prick of his.