Twins alone late night, outdoor_(1)

My twin sister Kassie had gotten a bottle of rum earlier in the day from some boy she knew who had gotten it for her after school. She had no real plans for it but she showed it to me later that night after mom and dad went to sleep. It’s was about 11:30pm and it was a school night. Kassie and I sometimes would stay up real late in the basement, playing video games or watching internet videos, even on school nights. We didn’t much care. We were both 18.
“Let’s make rum and cokes,” I’d suggested when she showed it to me.
So we grabbed some glasses with some ice, tiptoeing as we entered the kitchen. Best not to wake mom and dad this early on in the night, and we went back downstairs. We poured some drinks, going easy on the rum at first. Neither of us were big drinkers. After a cheers or two, we put on some music and just sort of zoned out for a few minutes, sipping the drinks.
“Soooo..” said Kassie, “What should we do?”
“I dunno,” I said, “I’m good just sitting here, getting tipsy.”
We were both at opposite ends of a three seater couch in our finished basement. Kassie was sitting indian style under a blanket and I had my own small blanket over my lap. We took a few more swigs of rum and coke.
“You wanna play a game?” said Kassie.
“Sure” I said, “What game?”
“Leeeeets playyy..” Kassie thought, “Never have I ever!”
“Hahaha!” I chuckled, “No, wayyyy. I’m not drunk enough to play that game.”
“Lets playyy…” Kassie continued, “I’ll do something for you if you do something for me…”
This was a game Kassie and I had made up over the years. Although it had been a while since we played it. It started to get a little weird the more we grew up, so we just kind of dropped it. Which is why her suggesting it surprised me a little. Last time we’d played we both stood naked in front of each other for ten whole seconds, counting out loud. The thought of doing that again sort of sparked my curiosity about how Kassie’s body may have changed since the last time.
“Haha! Oh my god…” I said, “I dunno about that… Remember last time?”
“Haha!” Kassie laughed, “Ehhhh, yeah… maybe not the greatest idea if we’re drinking..”
“Yeah..” I said, “Well… I’ll take a big gulp if you take a big gulp.”
We both looked at each other for a moment and raised our glasses to our lips, pausing another moment we rose our glasses and began to drink. One gulp.. Two gulps… Then as if a drinking contest had sparked silently, we both chugged the remainder of our rum and cokes. We let out a sigh, and I quickly got up to re-pour more drinks. Kassie sat, chin resting on her hand, pondering as I gave her her drink. I sat back down under my blanket.
“I will…” Kassie began saying slowly, “Show you my butt… for two seconds… if yooooou… dry hump the pole… foooor.. 4 seconds.”
We had a pole in the den in the middle of the room. It was more of a support beam, and Kassie and I used to dare each other to act like strippers on it, and laugh at each other. I remember her doing an alright job, once acting like a pole dancer.
“Hahaha!” I laughed, “That is a deal!”
I rose from the couch, slowly. Chuckling as she stood up slowly also. I walked over to the pole and grabbed it with one hand, brought my crotch to it. Kassie turned her back and looked at me, grabbing the top of her pants she slowly pulled down. 1 second: I ground my crotch into the pole and looked toward Kassie’s butt. 2 seconds: Kassie’s butt is almost out. Her skin is pale white and her butt looks small and skinny, but pretty nice, I grind again. Kassie lets out a laugh and rocks her hips once before pulling her pants back up. We both laugh anxiously as we quickly jump back onto the couch, gulp our drinks and cover up with blankets again.
“Hahaha!” Kassie laughs, “Well that happened! …You’re turn”
“Oh god…” I said “Are we really doing this?”
She giggled and nodded yes, and I quickly thought real hard. What would be weird for her to do? And what would she want me to do back?? It’s that kinda game. I gotta go for something crazy.
“I will…” I started, “Drop my pants, and put my hand over my junk… for 4 seconds.. If you… take your shirt off, but leave your bra on… indefinitely.”
“Haha! Ohhh god…” Kassie thought for a moment, “Ok!.. but you gotta go first.”
I stood up and faced her. Taking a sip, I put my drink on the coffee table and unzipped my pants. In one swoop my pants and underwear were down and I quickly covered my junk with my hands, standing up straight, facing Kassie. She looked down at my stuff before throwing off her shirt. Sitting up straight she presented her nice rack. I stared, 1.. 2.. 3.. 4.. I swiftly pulled my pants back Up. Kassie gave me a high five, and sipped her drink, shirt still off.
“Nicely done!” she said, “And nice junk, from what I saw, haha.”
“Yeah yeah,” I said, “Nice boobies.. Your turn..”
“Ooook…” she said, thinking, “ I will… get naked under my blanket if you get naked under your blanket..”
Now it’s a little past midnight. We both had a drink and a half and I say “Ok.” Covering our heads with the blankets, we both started removing our clothes. I couldn’t see, but I could hear her unsnap her bra and the jingle of her button and zipper. I kicked off everything, could see my own naked body under the blanket. With a “Done!” both of our heads emerged. We smiled and looked at each other, giggling. This was fun! I think, I imagine she thinks so to. We have a strange connection, Kassie and I, that not a lot of siblings do. Probably because we’re twins, we can be a little bit sexual around each other, and it’s no big deal really.
“Haha!..” Kassie laughed, placing her wad of clothes by her feet, “Oh my god, imagine if mom and dad came down and saw this..”
“Uggh yeah, that’d be weird, “ I started whispering, “Lets definitely not make too much noise.”
“Yeah, agreed.” Kassie whispered, wearing her blanket now like a strapless dress, taking a sip of her rum and coke, she said, “Ok your turn!”
“Oh god..” I said, “What else can I do?”
“Uhhhh, here’s a weird one…” Kassie laughed, “If you… haha… Get a boner under your blanket… (haha…) aaand I’ll poke it, three or four times with my finger.”
“Uhhhhh..” I anxiously chuckled, “You want me to pitch a tent? And your gonna poke the tent?
“The tip of the tent,” she raised her index finger, “Four times..”
“Alright,” I said, “Might take me a minute. I gotta like, play around with it a bit.”
“Take your time!” she said, “I got all night, haha..”
I grabbed my cock underneath the blanket. I was already a little bit hard, but I didn’t say so. I thumbed the tip a bit and a small pleasurable sensation made my cock swell a little. Kassie gazed in wonder at the little ripples I made under the blanket. I couldn’t believe I was basically jerking myself off in front of my sister. The booze helped at little I guess, but just the feeling that what we were doing had already gotten a bit out of control helped the process. I squeezed the tip of my cock and I was pretty fully erect.
“Are you there yet?” Kassie said, jaw hanging open a little, eyes glued towards my crotch.
“Yeah pretty much.” I let the blanket drape over me freely, swooshing in some air so it would slowly fall and revealed a staff, straight up, holding up the tent. I thrusted a little forward and up on the couch so the staff appeared taller. I was naked under a blanket, and I’d just gotten my cock hard at my sister’s request. My heart dropped a little. I grew instantly a bit nervous looking at Kassie and thinking about what she had to do now. My cock was pretty rock hard at this point as Kassie raised her right index finger. Leaned towards me, and I watched her arm move slowly closer to my covered up cock. It was inches away when my cock jumped a bit. Kassie’s hand paused a moment because she noticed… Didn’t say anything.. I could here her breath trembling. She made a jabbing motion with her hand and her finger poked my cock.
“One..” she said, and jabbed again. The split second touch made my cock jump again. “It moved!,” she said, and my cock stood up towards me.
I put my thumb at the base of my cock and propped it back up.
“Three…” she prodded again. This time my thumb at my base provided resistence and my cock swelled more.
“Four!” she prodded again, and quickly withdrew, hiding the bottom of her face with the blanket, giggling. I pulled my own blanket over my shoulders, and we both stared forward a minute. Saying nothing, we both grabbed our drinks and gulped the rest up.
“Want another one?” I said quickly.
She nodded, and I poured our third drinks. We were both smiling a little nervously, into our drinks as we quietly sipped for another minute.
“Sooo… Whose turn?” my sister quietly said, muffled by the blanket over her mouth.
The thought that my sister had basically just touched my hard cock was blowing my mind at that moment, keeping me hard even. My sister was very attractive, and so am I even, so this definitely was super weird for the both of us, but we were on the same page. I mean, we didn’t like each other sexually, but we both knew where this was going… and we were both now hesitating on just how far we were gonna take it. Time was running out. It was well past midnight and we were both a little sauced.
“Ok!” said Kassie, reclaiming composure, “I’m gonna go next… I got a good one.”
She pondered for a minute, sipping her drink.
“Stand up..” she said, “Walk to the sliding door… QUIETLY step outside… and take your blanket off.”
We had a sliding glass door in the basement that led to the back yard. It was dark back there and there was woods all around, so no neighbors could see, even in the daytime pretty much.