This will be a long story I feel, as long as there is interest in it.
Incest, BDSM, are themes within.
*****
I hated the summer camping trip with my family. Somehow my father always managed to pick the hottest week of the year to go. 95F degree days in the Cascade mountains of Oregon, were no fun. It became routine.
Wake up sweating in the tent. Go down to the lake to get wet and cool off. Read whatever book I had with me. Help cook. Go back down to the lake to cool off again. My fraternal twin sister loved the heat. She spent most her time fishing. She couldn't get a sunburn as easy as me. Her skin was much darker, and resistant.
So when a massive rainstorm hit our campsite I was elated. Dad had gone into town for soda and ice when it hit. I could read in my tent in cooler temperatures. The Willamette valley of Oregon normally doesn't get true thunderstorms. So when the sky opened up and began to dump an inch of rain per hour, it was highly unusual. My sister Tamara's tent was a cheap one, and it began to leak. She moved into my tent still wearing a bikini that left almost nothing to the imagination.
"Thomas, can I move all my stuff in here?" She asked and set down her sleeping bag. When she bent over, I could see both of her B cups perfectly.
"Only if you promise to stay quiet. I am trying to read." I answered.
"We can't play cards or something while it's pouring like this?" She asked. I thought about it. I was down for a card game.
"Sure, get the rest of your stuff. What is mom doing?" I asked.
"She is napping. I asked her about cards first and she nearly bit my head off." Tamara stated.
"Fine just me and you then. Rummy? Cribbage?" I asked.
"Cribbage," She said as she bent down to leave the tent, into the deluge. Her ass was very round. I found myself staring at it.
Tamara had always been small for her age. She was only 5 foot, and might have weighed 90 pounds soaking wet. She had the jet black hair of my mother, and her Native American skin. I had the brown hair of my father, and had his English pale skin. How we came out of the same womb in the same day looking so different was something we were still baffled by.
We had just graduated high school and we were debating college or taking up a trade like our father. He was an electrician.
For some reason I kept thinking about my sisters tits. They had light pink nipples and looked perfect. So when she bent down with her cooler in one hand and cards in the other I looked again. Damn! My cock twitched under my cargo shorts.
"Getting an eyeful Thomas?" Her smile was genuine.
"Your bikini top is too big for you. They are hard to miss." I looked down. She threw down the deck of cards and the cribbage board. I pulled the pegs out of the underside of it and opened the box of cards. "We playing for points or do you have money on you?" I asked.
Lets play for clothing. Take off your socks and shorts. That way we are even. Loser takes off their top first round. 5 rounds total." She explained. She opened the cooler, it was stuffed full of dad's beer.
"That doesn't work after 3 rounds one of us would be naked. What's the point?" I asked.
"If I lose, you could do stuff to me." She smiled with her evil grin. "Here have a beer it will make this more fun."
I took the beer from her, opened it and then began to deal.
"Oh, new rule. Every time there is a last point, or a "go", the person not scoring the point has to drink." Tamara added.
"This will get interesting." I said, then laughed.
Two games later I was naked. I kept my legs crossed covering my junk. We had each plowed through six beers each. She was feeling it. I still felt sober as I had been drinking almost daily since I was 16.
"Go out and get us some more beer from dad's cooler Thomas. I dare you!" She laughed and snorted. It was getting dark, and I lit a lantern. I could hear my mom snoring in a tent 10 feet away. The rain had slowed only somewhat.
"Not a problem Tam." I said. I got up and brushed. my cock against the side of my sisters head before I unzipped the door of my tent. I went out to the cooler naked in the dusky light and grabbed 6 beers from the ice water that kept my dad's beers cold.
I made my way back to the tent and as I was slipping in, I felt my ankles grabbed and I fell into the tent. Tamara had tripped me. I rolled from my front to my back as she climbed on top of me. She had taken off her bikini.
I didn't even have a second to protest before her lips were on mine. I would like to say that I tried to fight her off, but the truth is, I wrapped my arms around her and kissed her back.
We kissed for nearly 15 minutes, wrestling tongues. My hands wondered over her body. Her ass was perfect. I couldn't stop touching it. Her hands wondered as well. She grabbed my cock and put it at her entrance. With one little shove I was inside of my twin sister. She sat up and put her weight down on my cock, completely taking me into her.
At the moment I felt no guilt. I just was enjoying my sisters incredibly tight snatch. I grabbed her by the shoulders, and rolled her so I was on top. I slammed into her hard, my cock was begging to cum. I locked my lips to hers as I felt the cum roil from my balls and prostate. Four hard pushes later I lost my load inside of Tammy.
It didn't occur to me at first. I was panting, and trying to recover before I realized I had just laid a massive load in my own twin sister.
"Tammy, are you on the pill?" I asked.
"Why would I need birth control?" She asked.
"Because I am very fertile, and I just came in you." I explained quietly.
"Don't worry so much." She had a dreamy smile. She fell asleep.
I had two more beers and passed out next to Tamara, in her sleeping bag.
When I woke in the morning I felt Tamara's mouth on me. She was gently slurping on my stiffening cock. In minutes, I was raging hard. I pulled her up from deep in the sleeping bag and mounted her from behind.
Her cunt was super tight. I had meant to be quiet, For some reason, I couldn't. I was growling. Her smooth skin attracted my hands like magnets. I heard the zipper of my tent slide up. I was too far gone to stop. I busted my second nut into my sister as she moaned, and shivered from her orgasm.
" What the hell??? You two are fucking disgusting!" It was mom's voice. Tammy was hyperventilating, as was I, when we heard her leave. She zipped the flaps closed. It was morning already. We fell asleep in each others arms. Outside the storm raged on.
I woke up and pulled my naked sister off of me. It dawned on me that dad had never returned.
"Did you hear Dad pull up this morning?" I asked her. She shook her head with a worried look.