Rebecca had said nothing about it as we sat at the table over our late lunch. She opened a wine, and we drank and talked much like we always had, as brother and sister. We finished the bottle and opened another. We moved to the lounge room. I was anxious about what would inevitably happen but couldn’t deny, extremely turned on. Sitting together we drew closer and closer. Our legs touched then our hands. Soon enough we were making out like teens. Her hand was constantly caressing my cock through the teddy. I was kneading one of her breasts then began stroking the counterfeit cock between her legs. Finally, it began. Rebecca lifted her bottom from the couch and slid her pants to her knees. The strap-on sprung up to sit against her stomach the way a real cock would. She again wasn’t wearing panties and I could smell her aroused cunt, the aroma sending me wild. Without her even instructing me I took hold of the veiny appendage and sucked on the head all the while looking in my sister’s eyes for approval.
I was shocked at my ability to deep throat. It always looked uncomfortable for the girls I watched in porn, the choking and salivating, but that was what made it so fun. Rebecca held me by my pigtails and guided my head up and down on her cock. Drooling all over it she pulled my mouth off and looked me in the eyes. “You know what happens now don’t you?” She asked and I once again nodded.
I stood up and climbed upon my sister’s lap, straddling her hips. I reached behind and pulled aside the rear of my teddy and with Rebecca’s help guided the head of the lubed strap-on to my virgin asshole. The feeling was indescribable. The cock was thick and at least 8 inches in length. Once the head penetrated me, I used my body weight to slide the entire length of the shaft into my body. Rebecca unbuttoned her shirt and revealed her black lacy bra and small tits. I held each in my hands and leaned in once again to kiss her as I rocked back and forth, up and down on the dildo.
Bec pulled my cock from the lingerie and again wanked me. I arched my back and placed my hands behind me on her legs, still fucking the strap-on. Rebecca put a hand up to my mouth and I took two of her fingers into it, sucking on her digits as I’d done to her toes only hours before. Again, she brought me to orgasm, my anus twitching around the big cock buried deep inside me. I was shocked at the amount of cum I managed to spurt across her breasts. Opposed to before, Rebecca scooped up the semen with her fingers and sucked it off, slurping my cum into her mouth. She then offered me her fingers to do the same and greedily I sucked my cum off her dripping digits; swallowing like a good girl should.
Pulling out of me and with her pants still around her knees I watched panting and licking my lips as she walked to the phone and dialed a number. “Hey honey,” she said after a short wait. “It’s all good here. She’s ready, we’ll see you soon.” She hung up and I sat there wondering what was going on, shaking my head in confusion. “Oh. Dean’s on his way home Chrissy. He’ll be here within the hour. He’s looking forward to seeing all that you’ve learned!”
I was dumbfounded.
*
She’d lied to me. Dean wasn’t interstate, away for a week. He was working in the next town and had merely stayed away overnight. If I’d been told the day before I would be dressed as a girl, and not only that, in the presence of my brother-in-law I would’ve scoffed. I thought I would feel more nervous but right then, I wanted him to see me. I was looking forward to his reaction, his comments, dare I say it, even his cock.
Rebecca hurried me into her bedroom for my third costume change of the day. She wanted us to look like twins. Twin sisters to be precise. I was beginning to wonder just how long she and Dean had been planning this when she revealed two matching schoolgirl uniforms. This time with red pleated miniskirts and white shirts. I was given white satin panties and white lace ruffled ankle socks to go with my black heels. When we were fully dressed and her hair in matching pigtails, we heard the front door of the house closing and I knew it was showtime.
My sister and I walked hand in hand into the living room to find Dean pouring himself a scotch. “Honey,” my sister said to her husband. “You remember my little sister, Chrissy.”
“Well, don’t you two look delicious!” He opined, sinking his glass and approaching us. “Why don’t you both turn around and let me see those asses?”
Smiling at each other, Rebecca and I turned and lifted our already extremely short skirts to reveal our matching panties. Dean’s hands were on us in seconds, rubbing his fingers along both my sister’s and my ass cracks. He pulled our panties down to our knees and returned to his inspection. Rebecca and I were still looking at each other and began to kiss as he did so. “Why don’t we take this to the bedroom girls?” Dean proposed and we were more than eager to oblige.
On the bed Dean had Bec and I lay on our backs with our heads off the edge. From upside down I watched him remove his clothing, his broad chest and muscular arms, and finally to his thick thighs and already erect penis, a good inch on mine in length and girth. He placed it between our mouths and Bec and I began licking and kissing along its length, all the while keeping a hand on each other’s sex.
I opened my mouth and Dean pushed inside me. Over my tongue and into my throat. I felt his hand on my neck, squeezing my throat and the cock inside. As I began to choke, he pulled out, scooping the saliva dripping from my mouth and coating his shaft. Aiming at my sister, he plunged into her in the same manner. I watched her throat expand with his cock. He pushed deep into her until his pubic bone was pressed against her chin. I flicked my fingers across her clit and she squeezed my cock in response. Her face turned red and she began to gag. He pulled out with a flood of saliva and again returned his focus on me, fucking my mouth, his hands on either side of my head. “Oh, fuck Chrissy, you’re a good little cocksucker. You’re gonna make me cum.”
The thought of him cumming in my mouth excited me and my cock swelled in my sister’s hand. I watched out of my peripheral vision as she left my side and moved down between my legs. The next sensation I felt was her mouth wrapped around me. My sister was sucking my cock. My girly cock. Dean was satisfied with my cock sucking abilities and pulled out, positioning me in a doggy position with Rebecca below me, her mouth fixed around my dick. I knew what was about to happen and welcomed his penetration.
Dean pressed the bulbous head of his penis against my little asshole and pushed. Ever so slowly he allowed my anus to wrap around him until the entire head was inside. I squeezed my sphincter tight around his dick. “Ooh, you little slut. Fuck Bec, your little sister is a dirty girl!” Dean praised and slid his length deep into my ass. He spanked my ass cheeks and began his rhythmic fucking, all the while my sister kept up her oral prowess.
I needed to fuck her and risked a position change. I pulled my cock out of my sister’s mouth and popped Dean out of my ass. Looking down at my sister, her panties around her knees, the skirt around her waist, fingers inserted in her pussy, and her tits out. I could never have imagined her in such a position. None of my fantasies had ever been so raw, so hot. “Can I please fuck you, Rebecca?” I asked meekly. Dean and Bec laughed at my brashness. I was thrown onto my back and the next thing I knew; Rebecca had her asshole in my mouth.
“Lube it up Chrissy!” she ordered and of course I obliged. My tongue dug deep. Her asshole opened to my intrusion obscenely, allowing my lips as well as my tongue to enter her gaping hole. She pulled off me and with her back to me, mounted my cock. I slid effortlessly inside my sister’s ass. Deep. She leaned back and Dean climbed between her legs. I felt his cock press hard against mine and then the realization swept over me. We were both inside her ass.
I was not only having sex with my sister, but I was also double anally fucking her with my brother-in-law. Rebecca did all the movement. Gyrating her pelvis on our cocks. His hardness pressed against my cock like a bone. I held onto my sister’s hips and felt on the verge of cumming. I had to tell them; the sensation was too wonderful for me to hold off. “I’m gonna cum, I’m sorry,” I gasped, and then it happened. Filling my sister’s ass, coating Dean’s cock with my semen. A gushing firehose of an orgasm, emptying my swollen balls. The sperm made her ass sloppier inside and the friction was reduced. My softening cock sliding out of her butt, dripping with a fountain of cum.
Rebecca turned and I thought she’d chastise me for cumming so quickly, but she stroked my hair and kissed me on the mouth. “It’s OK Chrissy, you’ll learn to last longer!”
Dean was still fully erect, and I was now able to admire his size in more detail as he lay down between my sister and I. Bec and I took turns sucking him off. When his cock wasn’t in my mouth, I would lick his hairless balls. I attempted to take both into my mouth at once, but he was too big. Rebecca and I kissed above his cock, drooling down onto his pumping fist as he masturbated furiously at our incestuous make-out session. When he came it was a geyser. Spraying our faces with his hot sperm. I again sucked his cock, squeezing his balls to extract every ounce of cum. Bec and I shared the prize between us, our tongues coated in his man cream, spitting his milky desire back and forth between our coated lips.
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