Claiming My Sister
Copyright© 2021 by Mark Gander
Chapter 3
Incest Sex Story: Chapter 3 - Brian finds that his Welsh half-sister Morgan isn't just seeking his warmth under the covers. She wants a lot more of what he has to offer than that.
Caution: This Incest Sex Story contains strong sexual content, including Ma/Fa Ma/ft Fa/Fa Mult Consensual BiSexual Heterosexual Cheating Sharing Incest Brother Sister Rough Polygamy/Polyamory Anal Sex Analingus Oral Sex Pegging Pregnancy Squirting
I was soon balls deep inside Morgan’s tight, smooth, pale bottom, admiring her freckles as she moaned in delight from my strokes back there. She pushed back hungrily at my cock as she took me as far inside her ass as she could, the feelings of sheer lust swelling up inside her as well as me. My prick throbbed with every thrust inside her slick, silky cornhole, making her moan and cream herself as she welcomed me in the backdoor. Morgan definitely wanted me to ravish her sweet booty, judging from her sheer enthusiasm.
“Oh, God’s teeth, sis ... this is ... intense! Fuck ... yeah! Your butt is amazing! So ... fucking tight and hot back there!” I exclaimed while plowing my sister’s backfield.
“Not to mention slick, huh?” Morgan teased me with a wink.
“Damn, honey ... damn it! Oh, fuck, you’re ... awesome!” I tried not to cum just yet.
It was a very rough ride in that sense. Morgan deliberately tightened up, too, to make it even worse. She knew what she craved, it would seem. She wanted my cum in her bum, if you will, and she wasn’t about to give up short of her goal. She moved her hips and buns even harder back at me until I couldn’t hold back anymore. I erupted inside her cornhole, spilling every drop of my jizz into her depths.
“Wow, that was ... wild! Sis, you are irresistible, damn it! Your mother really corrupted you, didn’t she? Was she why Mom and Dad broke up? Nah, I think that was a long time coming, actually,” I thought aloud.
“Mum was a wildcat, but yes, according to her, Dad was already a bit dissatisfied with their marriage and it was likely mutual. They had their own gripes with each other and neither would bend rather than break, even a little. Not that it matters. Patty seems nice enough and at least Mum and Dad had their glorious love affair that made me!” Morgan answered, “and aren’t you glad that they made me, bro?”
“Am I ever!” I groaned, just before Morgan took my cock inside her mouth and started sucking it straight from her own ass.
“I taste pretty nice, don’t I?” Morgan asked me as she planted her butt above my face and urged me to clean out my own cum from her tush.
I didn’t even hesitate, eager as I was to dine on that delectable booty of hers, pushing my tongue as far inside her cornhole as I could. I lapped up every last drop of my own spunk and just kept rimming her, including the crack as well as the sphincter itself. Morgan had trouble focusing for several minutes as I orally pleasured her derriere, but she finally creamed herself and went back to work with a vengeance while I admired my own handiwork. I could still taste her butt sweat on my tongue, which was hardly an unpleasant flavor.
Then Morgan reversed herself and put herself on top of me to kiss me with traces of her own asshole on her lips and tongue. She must have cleaned out pretty well, because at no point did I taste anything gross or dirty or whatever. Then my sister went back down on me, sucking me all over again for reasons that weren’t quite clear to me.
That, strangely, was when Cassie wanted to FaceTime me, which was more than a little awkward, getting a blowjob from my sister while my girlfriend contacted me. Even a likely unfaithful girlfriend made it rather tense to get head from another girl while we looked into each other’s gaze from a distance. Morgan didn’t help at all by giggling between licks to my cock and balls.
“Hey, Cass, what’s up?” I asked her suspiciously, wondering as to her motives.
“Oh, honey, no pet names, no endearments, no nothing? Come on ... we’re lovers! Granted, you probably have a dozen girls being smuggled into your place whenever your father’s back is turned, but you know ... I haven’t been the model of fidelity, either. Model, yes, but not that kind,” Cassie cracked an awkward joke about her side action.
“Is that what you wanted to discuss, Cass? Your ... indiscretions or mine?” I phrased it in a way that made it clear that I wasn’t any more faithful than her.
“Well, in a way, yes. It’s clear that part of why we both cheated at first was that we had waited too long to screw each other. The other part is that neither of us is really faithful partner material, are we? Face it, babe ... we’re just not cut out to ‘forsake all others,’ as the old wedding vows say. So, let’s just come clean about it all ... fess up, and see if we can salvage this whole romance of ours, make sure it isn’t doomed,” Cass spilled out a little more of her thoughts on the matter.
“So, in a nutshell, we’re both horndogs and someone was bound to take our cherries, one way or the other. Are you ... proposing an open relationship, then? No more ‘don’t ask, don’t tell,’ no more looking the other way? Just open, evenhanded, that kind of thing? We don’t need to name names or give details, I presume,” I felt Cassie out for her ideas.
Truth be told, infidelity aside on both of our parts, I really didn’t want to dump Cassie. She had a lot going for her in the girlfriend department, even if she could be a little whiny, vain, and pouty at times. She was smart as a whip, great in bed, and pretty as fuck. Those gray-green eyes of hers were rather bewitching, not to mention her busty bosom and her plump rump. Yeah, she was a plus-sized model, believe it or not. Her parents didn’t approve of me, but that was due to my not being Armenian. She could also cook like a chef, which wasn’t surprising given her weight.
“No details needed ... wanted, perhaps, but not needed. I wouldn’t mind hearing of some of your exploits. For instance, are you alone in your bedroom right now, because I’m not. Not, it’s not Steve. He’s gay after all. Still a bit closeted thanks to Mom and Dad. Hey, it’s not easy being queer AND Armenian. Hell, I’m bi, but I don’t dare to tell the folks. Can you imagine how they would take that news? They freaked out about you when they first learned about you!” Cassie laughed, “but do you remember Bianca? She’s another model. Plus-sized just like me.”
Bianca raised her head and I saw what had to be a rather sultry Italian cutie with something wet on her lips ... what was that? Had she been eating Cassie out this whole time? Then I noticed a guy surface as well and it was apparent that my girlfriend had FaceTimed me during a little threesome action. The guy had sandy hair, a few freckles, bright blue eyes, and a rather slender build at variance with his two buxom partners.
“Who’s this guy?” I asked her.
“Evander, meet Brian, my boyfriend. Brian, meet Evander, our photographer, who happens to be Bianca’s boyfriend, in fact. Yeah, they’ve been my regular ... companions during this lockdown business. Partly from boredom, partly to pool resources and such. Hard times, you know. And partly because, well, I’m horny, especially away from you, and you get it,” Cassie winked at me now.
“Hello, Bianca and Evander. I’m Brian and this,” I said as I yanked Morgan by the hair and put her face into focus, “this is my sister, Morgan. Well, half-sister, to be honest. Yep, I’m banging my own baby sis. My own flesh and blood.”
This was a real test here. If Cassie objected to this, we’d be done, of course. It wasn’t like she could press charges about incest from another jurisdiction, after all. Besides, Cassie had upped the ante on wild and wanton stuff and I wanted to see her threesome and raise her an incest! I hoped that it would turn Cassie on and her partners, and I was not disappointed at all.
“Oh, my God ... your little sister looks barely legal, if at all! And she’s super cute! Adorable, even! She looks good enough to eat! I wouldn’t mind a threesome with the two of you sometime. Just don’t break it off with me over, well, Bianca and Evander. I certainly won’t dump you over someone you can’t even marry because it would be a crime in every civilized country on Earth! Just promise to move her in with us when you get a chance! I want a taste of what you’ve been sampling over there!” Cassie declared her own attitude on the matter.
“What if I told you that Morgan was sucking my cock during that whole chat up to this point?” I teased Cassie now, feeling more relaxed.
“Were you now, you little minx? Giving your own brother a BJ? Guess what? Both Evander and Bianca were sucking my tits during that bit earlier, so we’re even! They love to share the act of nursing with each other for some reason, just as I love having her rim me while he fucks me from behind! And she loves it when I sit on her face while he plows her slick, sweet pussy missionary-style! And he loves it when we take turns straddling his dick and his face! Just some examples ... favorite acts, though we’re no one-trick ponies!” Cassie reassured me as she blew me a kiss.
“Damn ... incest ... that’s fucking wild!” Evander blurted now.
“Tell me about it! I mean, seriously, tell me about it! I love hearing and reading about steamy incest ... and I loved the parts on Game of Thrones when Jaime and Cersei are together like that! It’s fucking hot!” Bianca now confessed.
Well, that made sense. That series had gone a long way toward making incest fantasies a bit more mainstream, hadn’t it? Not that it was a bad thing in my book, certainly not as a guy who enjoyed humping his own sister. Morgan beamed and then climbed aboard my cock, removing herself from their field of vision in a way that left no doubt that she was up to something rather hot and heavy. God, I loved that girl!
“Is she fucking or sucking you now?” Cassie snickered as she realized that my sister was back into action.
“Fucking me ... cowgirl-style this time. What about you? Are those two going to resume sucking your tits or something else?” I teased my girlfriend now about her intimacy with Bianca and Evander.
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