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Introduction:

Plan to fuck my 18 year old twin Sister takes on a ugly twist
Richie and Buddy, wearing just the masks protecting their identities, cocks still semi hard from fucking my sister in front of my eyes froze when the car hooted.

Buddy was first to react. “Put a knife to her throat..and if she makes a sound use it” he ordered. Richie obeyed by pulling Colleen to her knees and putting one hand over her mouth and a blade to her throat which forced her cheek against his now flaccid cock and spent hairy ball sac.

Buddy in turn moved behind the still partially open lounge door, knife in hand and waited. We all heard the key opening the front door and I saw Buddies muscles tense as he waited naked to punce.

“Hey kids Mom,s home” Came the call from the front door as our Mom entered the house. “ Dads staying on golfing again as usual” she continued with a sigh in her voice as she entered the lounge.

Mom froze at the sight she walked in on. Her 18 year old daughter on her knees naked held by a masked raider who too was naked and me, her son tied to a chair similarly naked. She was about to scream but the slam of the lounge door and Buddy,s hand smothering her mouth stopped that from happening.

“Quiet bitch…one sound and your kids are getting cut up..understand bitch…understand” Buddy rasped in her ear. Moms eyes watered as she nodded confirmation. He carried on “ Good, I am going to let you go but try anything and we are going to start slashing your kids faces till you wouldn’t recognise them, you want that?”. Mom frantically nodded no “. “ Good then we understand each other”. Buddy pushed my Mom away from him and I saw he had started to get a stiffy on.

“Your daughter has been entertaining us” Buddy told my Mom. “And now you are here, I am sure you want to help her out…..strip. Don’t be shy Mommy look at your kids, they are all naked as the day they came out of your cunt…..and your son and daughter there, well we have watched them fuck each other till she got his spunk in her, and now we are going to see him do the same to his Mommy…if not “ He motioned vicious slashing with his knife. “ Strip Mommy”.

I sat there tied to the chair gagged, hearing what Buddy was telling my Mom and could see the expression on her stunned face as she was told her siblings had fucked each other for their amusement, and that she was now ensnared in this nightmare and would be next…and I felt my cock harden to this new twist by getting hard at the thought of my Mom and what I would be “made

“ to do.

My Mom, her hands shaking, started to unbutton her sleeveless flower patterned blouse exposing the cleavage between her breasts enhanced by her white bra. Buddy pulled the unbuttoned garment off her and she reacted by covering her tits with her arms.

“Carry on Mommy…now the skirt” Buddy ordered.

My Mom lowered her still trembling hands to the waist of her pale grey skirt and unbuttoned it and it fell to the floor around her ankles leaving her standing in just her underwear. I had seen Mom,s tanned body in a one piece swimsuit many times,but she had never worn a bikini since we were kids, and I couldn,t help appreciating how good she looked for a middle aged woman standing there in bra and panties.

“Keep going Mommy…… We want you as naked as your son and daughter here “ Buddy prompted and gestured with his knife towards her siblings “or you know what will happen”.

The look on Mom,s face expressed her helplessness as she slowly reached her hands around to unclasp her bra and remove it exposing her tits to us. I had a hard on already but seeing Moms tits made my cock twitch visibly. Gravity over the years and breast feeding her kids had an effect, but not too much. They were slightly saggy with age and had a sway to them when she moved and her dark areolae and large nipples that I was suckled on pointed more towards the ground than her daughters, but they were hot.

Mom subconsciously had kept hold of her bra in her left hand holding it by the strap next to the clasp so the cups that had held her tits dangled against her bare tanned thigh as she hooked her thumbs into her panties and I was drawn to the faded stretch marks that having me and Colleeen had given her. She pulled her white panties down and stood again keeping them in her hand together with her bra.

Mom stood there completely naked and I saw I had some pre cum coming out of the eye of my stiff cock as I saw for the first time her triangle of thick dark curly pubic hair protecting the cunt that produced me and my sister.

“Do you love your kids Mommy” Buddy asked Mom.

Mom looked at him and nodded yes. He walked over to me knife still menacing in hand and asked “Do you love your Mommy”. I nodded yes. He moved to Colleen who was lying in a foetal position on the carpet, He prodded her with his foot and asked “ Do you love your Mommy and Brother”, Not looking up she just nodded yes.

“Good” Buddy said,” we are going to see THAT you really are going to LOVE each other”. ”Mommy your son needs sucking off. I want you to wank and suck your son off till he shoots his load in your mouth, then you will go over to your daughter and she will open her mouth and you will spit your sons cum into her mouth for her to swallow…understand….if not the slashing begins…and your daughter will be the first…understand?”

“ Yes I Understand” my Mom said in a quiet faltering voice. And I watched as my naked Mom walked towards were I was bound up, not looking me directly in the eyes. She dropped to her knees and reached out and took my stiff shaft in her hand and leaned forward and wrapped her mouth around my cock and started frantically sucking me off.

I watched as my Mom engulfed my cock with her mouth, feeling her soft lips along my stiff shaft and the sensation of my manhood against the texture of her tongue. Her head moved up and down taking all of her 18 year old sons cock and I felt my bell end at her throat. I looked as her auburn haired head bobbed quickly sucking me off, and her hand rhythmically following in unison milking my cock base, her other hand still holding her bra and panties resting on my lap.

My bodies base animal instincsts took over and I started bucking my my pelvis involuntarily. I was mouth fucking my Mom, the woman who had given birth to me, and she was sucking and wanking me in unison as the others watched.

The erotism of of what Mom was doing to me was too much for my young body to contain and my body tensed and I started to jerk my pelvis as I orgasmed my sperm into her warm soft mouth while struggling with my bonds in an attempt to grab her head to pull it further onto my pumping manhood.

My thrusts slowly subsided as my balls emptied my cum into my Moms mouth and I sagged back into the seat of the chair that bound me.

“You know what to do next Mommy dear” Buddy almost taunted with his voice.

Mom gripped my bare knees to help herself get up from kneeling in front of my now slowly flagging cock, her tits swaying as she did so and briefly looked me in the eyes as she turned towards where my sister was lying on the carpet with Richie holding her hair tightly to keep her still.

“Do it, Do it ..or else” Buddy prompted.

Mom falteringly stepped over to her daughter and sank to her knees against her. Richie gripped my sisters head firmly and I heard him telling her several times to keep her mouth open.

My Mom, tears in her eyes bent towards my Sister Colleen,s open mouth and hovered her own mouth several inches above it, then Mom parted her lips slightly and the mixture of her saliva and my cum slowly dripped from her lips into my sisters mouth.

Colleen started to gag slightly as her moms spit mixed with her brothers sperm drooled towards her throat, but Richie kept her head firmly held and Buddy grabbed my Mom by the hair and forced her lips onto her daughters making them share my cum and their own spit.

When Buddy pulled my Mom back to her knees her mouth was smeared with spit as too was Colleens and I knew my cum dna was mixed in them too.

Buddy traced his hand along my Moms wet lips and smiled.

“Be a pity to waste this wetness Mommy, especially as your daughter must be sore as hell having my hand in her cunt, so why don,t you stick your dirty face down there and start licking it better” With that Buddy nudged my Moms arse with his foot as a prompt and Mom moved on all fours to Colleeens groin, lowered her head and began licking her daughters cunt.

I watched on realising our initial plan to fulfil my fantasy to be able to fuck my Sis with her having to keep it secret under our pretend threat of photos being put on the internet of our incest by the masked raiders was now taking on a life of it,s own. And I also realised too that I was now just a pawn in this now nightmare and Buddy and Richie could…and are doing whatever perverse things they want to their captives…which included me…and I cannot do anything for fear of being exposed as one of the planners of this debasedness. So I continued watching the scene before me, My sister naked on her back, with my Mom on all fours her bare arse and cunt facing me licking her daughters abused slit. Tears filled my eyes, yet I could not prevent the realisation that my cock had started to stir once again at what I was watching.

I had unwittingly given Buddy and Richie,s pervertedness free reign by going along with our initial plan, and seeing their cocks indicated they were savouring their power.

Buddy Pulled my Mom from licking my sisters cunt to her knees and made her take his cock in her mouth and started face fucking her, and I sensed from his eyes as he looked in my direction that he was smiling under his mask as I watched what he was doing to my Mother. Richie followed his lead and got my sister onto her knees and stuck his cock into her mouth and started face fucking her too.

“Remember girls,” Buddy said while thrusting his cock into my Moms gagging mouth “ When we spunk our loads, no swallowing girls, keep our warm cum in your mouths so you can share it with the boy”.

My eyes widened in startlement hearing the words but carried on looking at the sordid scene of my what I had thought of mates mouth fucking my closest relatives. Richie came first into my Sisters mouth, followed seconds later by Buddy into My Moms. They Pulled them to their feet and marched them over to me tied to the chair.

Buddy reached out and ripped the gaffa tape gag from my mouth saying “Ok Boy, same rules, any failure from any of you and we start slashing your pretty sister first. Now I want little sis here to French kiss you and the two of you make sure my friends cum end up in your mouth so we can see, then Mommy will do the same” he turned to my Mom “ You will then French kiss your son and get my cum into his mouth. Understood…good….go on sis”.

Richie pushed Colleen towards me. I smelt her body sweat as she moved her lips towards mine and I gazed into her frightened eyes and down her firm young tits. I opened my mouth slightly and we locked lips and I felt her tongue moving trying to direrct the cum in her mouth and my tongue reacted to her mouth and lips and moved my tongue to hers. My slurps at trying to get the mixture of Richies cum and my sisters spit and saliva into my mouth was audible and after a couple more seconds we broke lips and I opened my mouth to show the captors what I had taken from Colleen.

“Good boy……..now do your Mommy”

My Mom was then pushed towards me and I again could not help my eyes taking in the look of her bushy cunt hair and her large nipples. My Cock was hard as she moved her mouth to mine. Again I could smell her sweat and faintly the perfume she always wore. Her lips touched mine and we opened our mouths in unison and felt each others tongues. I eagerly explored her warm mouth partially for the task but mostly from pure lust. I knew my cock was rock hard now, no need to look the physical sensation I got confirmed it. We pulled our mouths apart and I was relieved that I had not cum. Mom gave me a look of I think confusion as she stood. I opened My mouth again to demonstrate I had her spit and Buddy,s cum.

To be continued
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