Poker Night with Sis by Mathematician

I couldn’t believe I’d gotten this close. I’d played this out for half the summer, and here she was on her knees, naked, blindfolded, and mouth wide open. My heart was pounding, and it felt like my rib cage was shaking in my chest. She was clearly reluctant to do this, so I had to continue playing my cards just right.

It all started when I came to stay with my sister for summer vacation. We’d both grown up and had children, and they were the best of friends. Both of us were divorced from cheating spouses and looked forward to catching a break from parenting alone. With me at her place, she was able to cook and shop in peace. With her there, I was able to study for graduate school exams in peace. And, in the evenings after lights out, we were both able to kick back with an old bud and relax. We talked about old times and new, about boyfriends and girlfriends, and how neither of us had scored in ages. I insisted that she was the lucky one. She was good looking enough at 5’6″ with larger than average breasts and could easily sleep with any number of guys if she wanted to. She tried to insist it wasn’t any different for me, but I simply didn’t have an interest in sleeping with just anyone. I guess neither did she. But, I did have an interest in sleeping with her, and I had a plan on just how I’d do it.

You might ask why? Why this sudden fetish for my sister? Or was it sudden? The truth is I never found her even remotely attractive growing up. We were more rivals than anything. We constantly tattled on each other. She was always running off with boys, lying, vandalizing, and stealing things. I, on the other hand, was just a perv, trying to watch porn in private and failing. She even lead my mother into my bedroom while I was jerking to a porno on skin-e-max. I was such a scatter brain, that I changed the channel quickly enough, but still had my dick out with my hand wrapped around it. The humiliation of that talk was the worst. But, this wasn’t about revenge. It wasn’t til years after we’d both grown up and had children of our own that a sexual thought about her had ever occurred to me. Some guys were just making crude redneck jokes. They said, “If fucking my sister is wrong, I don’t want to be right. I don’t care what you say. My sister’s pussy is the best.” I just laughed, but later that night I couldn’t help but think about her. Night after night, I found that I had intense orgasms when thinking about my sister, and I just had to find a way to make my fantasies a reality. All my fantasies wrapped into one.

“And Daniel Negreanu wins the 11 million dollar grand prize!” The poker commentator called out.

Each night my sister and I kicked back and watched texas hold’em poker on tv. It was fun and exciting, and I just happened to bring a nice poker set with me. So each night we watched poker on tv, and then some nights we’d play after words for kicks and giggles. Each of us trying to do nifty tricks with my clay chips like the professionals on the tube. But at the same time, we didn’t need stakes, because we were both competitive by nature and she loved the chance to gloat over her brainy goodie two shoes big brother. I just kept complaining that it was a game of luck, while she kept pointing out guys like Negreanu who won over and over demanding it was skill. I put on a good show of frustration. I made sure to make a lot of risky bets. Any time I was on a draw, I upped the bet. Winning big occasionally made it look convincing, but I’d discovered her tell early on. It was in the subtle movement of her hands. When she had a sure thing, her hands were placed close to her chips while she decided what to bet. It wasn’t much, but I knew with patience it would be enough.

Finally the fateful night came as I surprised my sister with a couple bottles of Sky vodka and said I was taking her down! She just laughed and insisted that being drunk wouldn’t change a thing.

“So why not put your money where your mouth is!”

“Pfft” she rolled her eyes, “what money? You know those little leeches barely leave us with any blood.”

I laughed. “True enough, but I’ve got way more school money than I need and it’s burning a hole in my pocket, so I want to play for some stakes.”

She gave a half hearted smile and shrug, “Sorry bubba, I just don’t have the money..”

I toasted our shot glasses as we both downed some vodka, “So play for your clothes.”

She snorted her vodka and started coughing. While I laughed playing it off as a joke. Once she got her breath though she went for it, “Ok, but how much money are we talking about here? I don’t want to bankrupt ya.”

I waved her off and poured us some more to drink. “I’m good. Let’s say we play for a couple hundred each round until you hit 3 grand.”

Her eyes nearly jumped out of her head. “3 grand! They must be giving you a fortune.” For a moment she looked like she was about to back out, but then she said, “ummm one problem though.. I only have like 6 articles of clothing on including my socks and that’s 15 rounds of play.”

I faked contemplation for a moment, holding my drink to my lips. I downed the drink, shivered and shrugged, “We’ll make it 300 a round and play for forfeits.”

She drank as I poured more. “Forfeits?”

“Yeah.” I refilled her shot glass. “You know, like you’ll watch the kids alone for the next week while I kick back and relax all day, or you have to give me foot massages each night for the rest of the summer. And then I’ll write down a couple surprise ones if I manage to make it that far.” I no doubt turned pale as I watched her carefully for hesitation at this point.

She got a sour look on her face like she knew exactly what I meant. Then as if on cue from the heavens, we hear, “And Daniel Negreanu does it again!” I turned to the tv and said “Lucky Bastard”

She must have taken that as a sign, because she decided she was in. At this point I made sure we agreed that she didn’t get any money unless we played all the rounds out, and that even if I win, she gets whatever money she’d won off me so far. She agreed as I dealt the cards, and the game was on. It was definitely the slowest game we’d played since I’d come to stay with her, but I knew I had to play it slow. I had to dodge all her good hands and push her to rely on lady luck. Despite knowing her tell, it was a slug fest at first, she’d managed to get 15 hundred dollars off of me before losing her second sock, but as the night progressed and her bottle of vodka emptied I started to get “lucky”. Down to her bra and panties, she couldn’t believe she’d gotten stuck at 18 hundred dollars for so long, as I took another round.

She sighed flabbergasted and slid her panties off under the table. Then, she threw them at me, “Perv” she giggled drunkenly.

I stuck my tongue out at her. “No fair! I can’t see anything.”

She took another drink, bent over, and said, “Kiss my big butt bro!” Then sat down as we both laughed.

“That’s totally my first secret forfeit.”

She pouted, “Awwww bubba’s not going to get to kiss my butt, so sad.”

We got back to it and, I knew if I was going to take this farther, I had to make it close enough to keep her going. I lost up to 27 hundred dollars, and decided it was time to pull the trigger. I won the next match and hooted “Take it off baby!” She rolled her eyes and quickly tossed her bra aside without ceremony. I wasn’t disappointed though. It had been years since I saw tits in person and I just stared drooling over her puppies.

She sighed a bit sleepily, “Well, you got to see me naked, congratulations. Let’s get this over with so I can take your money and get to bed.”

“It’s not over yet” It was almost over though as I struggled for victory over the first two forfeits. She stared the cards down seriously now. It was clear she had no intention of paying off any more forfeits and wanted to end this thing before seeing what secret forfeits I had in store for her. But it was a total shut out. She turned pale as she quietly asked, “ok.. what’s the damage”. I unfolded the first piece of paper as my heart began pounding. BLOW JOB. She sat staring at the paper for a moment. “I don’t think I can..”

I was afraid of this. “You’ve never given a blow job before?”

She got quiet.

“You should at least try..” I got up and wondered around in the kitchen for a moment and pulled a blindfold out of my pocket like I’d magically found it in the kitchen. I walked up to her and said “Here.. just put this on, and pretend I’m someone else.”

She looked like she was going to be sick.

“Just put it on, take your time, get on your knees, and I promise it’ll be fine.”

It looked like she wiped a tear from her eye as she snatched the blindfold from me and dropped on her knees indignantly. “I’m telling you, I can’t do this.”

After the blindfold was on, I undid my pants and let them fall silently off. I then pulled my rock hard dick throw the opening in my boxers and stroked it slowly, a couple feet in front of her face. I couldn’t believe I’d gotten this close. I’d played this out for half the summer, and here she was on her knees, naked, blindfolded, and mouth wide open. My heart was pounding, and it felt like my rib cage was shaking in my chest. She was clearly reluctant to do this, so I had to continue playing my cards just right. I placed my index finger on her bottom lip as she snapped shut and pulled back whimpering. “shhh.. it’s just my finger.. open your mouth..” It took a moment, but she opened her mouth just barely. I ran my hand down along her cheek, then slid my finger over her lips and onto her tongue.

“suck it”

It was like lightning shot through my finger as her lips closed around it and she sucked it gently, her tongue swirling around it. It sent shivers all through me and I felt almost like I’d shoot my load right there. But, I withdrew my finger. “Open a little wider this time.” She hesitated for just a moment and gave a whimper as I placed my finger back on her tongue. She pulled back just a little bit before realizing it was just my finger, and she went back to simulating a blowjob on my digit. I repeated this several times as she got comfortable taking my finger, my thumb, multiple fingers, and then finally I put my cock in her mouth.

She reached around me and grabbed my ass as if to hold on for dear life as she began gobbling down my cock. I couldn’t believe how wonderful it felt as her whimpering hummed over my cock. She was really giving it her best effort as she bobbed her head back and forth, twirling her tongue around the head. I placed a hand on her hair and looked down to watch my sisters face as she sucked my dick. It was beautiful. Her mouth was like a dripping wet sauna. So hot, so moist, so soft.. She started to make slurping sounds as she took my cock with each thrust forward, threatening to begin deep throating it if I didn’t give her my seed. I didn’t want it to ever end, but I knew I’d never get off this way. Despite her best efforts to get me to cum as quickly as possible. I had one more forfeit to collect. I pulled my cock from her wanting mouth. She gasped for breath, reaching out for me. “what’s the matter?”

I pulled up my pants. “Nothing.” I removed her blindfold and looked down into her eyes. “We’ve got one more round to play.”

She looked up at me, her eyes glazed over in a drunken lust. I knew then that I had already won. I took her to her bedroom and laid her down on her back. I could see some hesitation begin to form on her face as I crawled up between her legs. But, I bet that look melted away as I dove into licking that sweet little pussy. She moaned without restraint as I licked her up from her asshole to her clit, flicking her clit back and forth each time, then giving it a nice good suck. She was soaking wet already, but I wanted to eat her pussy almost as bad as I wanted to fuck her now. I teased her entrance with my tongue. Pressing against it like I’m desperately trying to penetrate her without success, always slipping just to one side or another. Then, I moved up to her clit and gave it the closest thing to a blow job that I could as I sunk a moistened finger deep inside her. She bucked her hips, moaning loud, as I bobbed my head up and down sucking her clit and, using my fingers to push her over the edge.

With her eyes closed, she seemed to be desperately sucking in shallow breaths of air as she tried to recover from her orgasm, but before she could I moved quickly into position. She hadn’t the moment needed to object before I pushed my cock deep inside her. “JOHN NO!” She cried out, but it was too late. I began pounding into her pussy for all it was worth, and despite her late objection, she wrapped her legs around my waist and took the full length of my dick inside her. I kissed her, and she kissed back as the waves of taboo pleasure pulsed through us. This wasn’t to be short lived though. I hadn’t got any for years, and my body was hungry for a woman like no other. I jack-hammered that pussy into puddy. She was mine now and she submitted to me thoroughly as I rode her through orgasm after orgasm. Switching to doggie to give her some good spankings as her hot juicy pussy clenched my ever thrusting shaft. My stamina had always been a long term problem with my past girlfriends, but in the short term, I think every woman loves a fuck that leaves her so sore she can’t walk right for a few days. What’s more, is that I knew there would be no tomorrow with this woman. So once I finally drove my cock home and planted that seed deep in my sister’s womb, I knew we would both be satisfied for a long time to come.