Category: Incest/Taboo Stories

Blackmail Blowjob

by slyc_willie©

For a long moment, Kathy just sucked, tasting the flesh of my cock and the fluid that seeped onto her tongue. She worked her jaw, gently munching my sausage, massaging the underside of my shaft with her tongue. I sighed in pleasure, writhing under my sister. She had to know how good she was at sucking dick. I had never felt anything as hot and caressing and just downright incredibly pleasurable as my own sister's mouth. Not even Angela Dammer's tight little pussy felt this good!

Finally, Kathy started gliding her smooth, soft lips up and down my penis, submerging me again and again in her mouth. She slowly increased the strength of her suction as her fingers fluttered around my dick and stroked my balls. I gasped, digging my fingers into the couch cushions as the sensations intensified. Kathy's mouth made soft, sexy sucking and slurping noises as she gobbled my cock.

Increasingly, as my sister's blow job continued, she seemed to get more comfortable with the idea, and feel, of her brother's penis throbbing in her mouth. She became encouraged, and tried to take more and more of my length. I groaned aloud as I felt the entrance of her throat flutter against the head of my cock, like a second little mouth. But Kathy gagged and pulled back.

"Oh, God, Kathy," I moaned, tentatively bringing up my hands and threading my fingers through her soft, fragrant hair. "It's even better than I thought it would be."

"Mmm," moaned my sister, pumping her mouth up and down. She squirmed a little, shifting her legs, arching her back as she sucked me. It was like she was offering herself to some invisible man behind her, wanting to get fucked. I admired the fine shape of my sister's tight ass, fully outlined by her tight shorts.

Oh, man, how good would it feel to fuck that ass? I wondered, the thought making my dick twitch in Kathy's mouth, giving her a spurt of pre-cum across her tongue.

My sister moaned again and kicked her blow job up a notch, sucking harder and deeper, louder and wetter. I loved hearing the sound of her breathing through her nose as she worked hard for her reward. The feel of her bouncing head in my hands was an unbelievable turn-on. None of the girls who sucked me before let me put my hands on their heads. But my sister seemed to be turned on by it.

Kathy made muffled, eager whimpering sounds as I pushed back with my hips, feeling my orgasm build. She knew I was getting close, and the idea of my impending orgasm obviously aroused her. Her brow furrowed and her cheeks darkened a little. Kathy whimpered in anticipation around my dick, wanting to make me cum in her mouth. She fucking wanted it!

My sister tensed suddenly, shuddering, moaning around my cock. She rolled her hips, and her lips, dripping and shiny, parted around my dick as she panted heatedly and shuddered. The aroma of an aroused pussy filled the air, and my sister winced, jerking a little, breathing hotly on my cock. "Oh, fuck!" she gasped. Then, with a moan, she resumed sucking me with animalistic desperation.

Holy shit! I thought with sudden realization. My sister got off while sucking my dick! She's really fucking turned on by blowing me!

"Oh, damn," I moaned, massaging my sister's scalp. "Oh, God! Hmmmm . . . ."

The startling realization that my sister had cum while sucking my dick triggered my own orgasm, and I arched my back, driving my cock into Kathy's mouth. I gripped her head, gasping, panting, making little choking sounds as I exploded like a freaking volcano.

Kathy moaned as my semen jetted into her mouth. She jerked back until just the spurting head of my cock was between her shiny wet lips, and sucked hard, making faint little grunting noises as my thick, creamy load filled her mouth. Her tongue rubbed firmly against the underside of my cock head, and her hands stroked up and down my shaft, lightly squeezing my balls, coaxing out every drop of my salty seed.

I trembled, feeling intense pleasure, and smacked my hands to the cushions, letting out loud groans. I thrashed as my sister just kept sucking me, prolonging my orgasm. I stared down at her, saw that some of my juice had smeared around her lips, making them sticky and glossy. Kathy eased back, gulping loudly, breathing on the head of my dick as my semen slid down her throat to her belly.

"Oh-h, fuck!" I cried. Never, ever, had a girl let me shoot in her mouth. But here was my own sister, swallowing every ounce of sperm my balls had to give! Talk about hot!

Kathy let my dick flop to my abdomen, and moved down, mouthing and licking my deflated balls as I recovered. I panted deeply, seeing stars as I stared up at the ceiling. I had never cum so hard in my life. I had never felt so satisfied.

Now that's what I call a fucking blow job!

My sister dragged her wet tongue back up my shaft, licked around the head a little, then eased back on the floor, breathing in and out. She smacked and licked her lips, regarding my spent dick. I noticed a thin, glistening trail of sperm that had leaked from the corner of her mouth and run down and under her chin. She didn't seem to realize it was there.

"You know," she said with a heavy breath, finally looking up at my face. She gave me a little smile. "That wasn't as bad as I thought it would be."

I stared at her, awestruck and blissful. "That was fucking incredible," I gasped. I noticed how erect her nipples were, so long and hard that they almost tore through the fabric of her tight top.

Kathy rolled her eyes, but she smiled. She had to know that my comment was high praise indeed. She smacked her lips, swallowed again, still tasting cum. She studied my face a moment. "Okay, here's the deal," she said. "Once a week, until the wedding. That's fourteen blow jobs. Deal?"

I stared at her, trying to hide how surprised and stunned I was at her offer. I was ready to fork over the video after just one heavenly blow job. But . . . fourteen? Hell, yeah!

"Uh, s-sure," I said. I gave her what must have been a goofy grin. "Deal."

Kathy chuckled, shaking her head. She leaned back forward, kissed my cock, then my balls, and pushed herself to her feet. She looked down at me. "Better clean up and put your shorts back on, little brother," she said. "Mom and Dad are gonna be home soon."

I watched after her as she stepped around the couch toward the door. "Uh, Kathy?"

She stopped and glanced back over her shoulder, her chin glistening with cum. "What."

"Um . . . you got some on your chin," I said.

Kathy frowned, touched her chin, then laughed softly. She wiped up the cum with her finger, sucked it clean. "See you later, little brother," she said coyly, then left.

I sighed heavily. "Oh, man," I moaned.

I couldn't wait for my next blow job.


Tuesdays became 'Blow Job Day.' That was the day that Kathy only worked lunch shifts at the restaurant, and I was always home from my classes by three. Kathy attacked my cock enthusiastically each time, and commented about how my size turned her on. Sometimes, she'd really make it last, keeping me from coming for almost an hour before letting me blast off in her mouth. She'd take every drop down her throat, sometimes letting me see her cum-filled mouth before swallowing.

Kathy sucked me everywhere: in the den, living room, kitchen, my room, her room, and several times in the back yard. I realized that my sexy, cock-addicted sister was an exhibitionist as she stripped down under the sun and slurped happily on my throbbing tool while fingering herself.

The last time my sister sucked me off was outdoors, in fact. She let me give her a facial, which I had all but begged her to let me do. Then, without bothering to wipe the cum from her face, Kathy spread her legs as she straddled my chest and masturbated before my eyes. I stared in intense arousal as Kathy finger-fucked her shaved cunt and rubbed her clit in tight little circles until she came. She even let me kiss and lick her dripping cunt a little bit afterward. Then she sucked me off one last time, swallowing my load when it spurted in her mouth. Only then did she get up and look for a towel to wipe her sperm-glazed face and neck.

Kathy made sure I erased the blow job video from my computer, and I went even further, deleting the copies I had saved to my email. Kathy appreciated my honesty, and kissed me on the cheek.

Four days later, she walked down the aisle and got married to her fiancé, becoming Mrs. Kevin Thompson. I captured pictures of my stunning sister in her wedding dress, using my digital camera.

My digital camera that still held a six-minute video of Kathy sucking off my best friend.

Sitting beside me in the church, Jeff leaned close to me. "Man, Kev's a lucky guy," he said knowingly.

I smirked. "Yeah, I know," I said.


Written by: slyc_willie

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Story Tags: brother, sister, incest oral, siblings, swallowing, facial, outdoor, cheating, voyeur, blackmail

Category: Incest/Taboo Stories