I was strapped into the back third-row seat of our family SUV and watching a video of myself having sex with my girlfriend on my phone. My parents were sitting in the front, and the middle of the car was filled with travel suitcases, ice boxes, and trash. My twin sister, Kirsten, was sleeping on a pillow, leaning against the window. I was so turned on that I slowly rubbed my cock over my shorts.
We moved across the country in the middle of the summer, and my sister and I left behind a boyfriend and a girlfriend. My girlfriend and I have sex three or four times a day, mostly oral sex and quickie sex. She is a real nympho. Everything turns her on and she enjoys endless, juicy orgasms. We had been fucking, sucking and fingering for two months almost non-stop and now it was over. I was a hopeless junkie with a 9-inch cock hard as steel who had nothing to do but watch videos of my girlfriend and try not to cum. I need to cum, but I have to somehow get rid of a lot of evidence because I cum like a porn star. There was no way I could cum in my shorts without making a mess.
I was mesmerized by the video of my girlfriend swallowing my cock as my sister rested her head on my shoulder. “Fuck you,” I hissed angrily, “Stand on your side!” I clutched the phone with one hand while trying to hide my cock, which was tearing my shorts.
“What?! Oh my god! You’re watching porn!” Kerstin slapped my arm and tried to snatch my phone. She put her hand on my leg and told me to hold it down to avoid showing my penis, and I had to drop the phone.
She kept looking at the screen. “Do you like watching guys with big dicks give blowjobs?” “She really likes it. I think I’ll keep it for a while.” Kerstin’s mouth fell open, her eyes glued to my phone.
“Give me my phone back!” I couldn’t decide if it would be more embarrassing for her or for me to tell her that she was watching her brother fuck her best friend’s mouth.
For the past year, my sister and I have been doing our own things and not spending much time together. Plus, I stole her best friend, and she hasn’t been hanging out much lately because she’s been distracted by my cock. Kirsten is thin, but muscular and athletic. Gymnastics and cheerleading gave her strong thighs and round, plump buttocks. Her breasts were curvy B cups, her waist was slim, and her strawberry blonde hair made her very popular with the boys. I had never bothered to take a second look at her before, but in my current aroused state, her bare, tanned legs looked so delicious. Her green eyes were filled with lust and the backseat smelled musky.
Suddenly her eyes got big. She turned and looked at me and said, “It’s Mandy! What the hell is going on? I’m watching porn of my own brother? Oh my god,” she said. She kept looking.
“Okay, then give it back to me!” I stretched out my hand, she raised her head and slowly handed me the phone. She was calm but staring at my legs. She came closer and whispered, “Are you playing with yourself? Are you going to masturbate next to me?” She looked ahead, but had no idea Mom and Dad were listening to NPR on the radio.
“No! I’m not masturbating. I’m just bored and I miss Mandy, so I’m watching our videos.”
“Then why did you put your hand on your cock?”
“Well, it’s hard and I’m trying to hide it. It won’t go down.”
She stared at my legs for five awkward seconds. “Does it hurt?” She was more sympathetic now, unable to take her eyes off my crotch. The scent of her pussy did not help my erection either.
“It doesn’t hurt, but it’s very uncomfortable. Stop looking and do something else!” Kirsten wasn’t wearing a bra under her shirt, and I could see her puffy nipples standing up.
“How big? It looks huge on the video.” Her desire for the screen was the same as it is for me now. I swear her lips had become red and full and I could see her pink tongue glistening in her mouth. “Just move your hand and show me. I’ve seen a dick before.”
“Serious. I don’t want to know about my sister’s sexual history.”
“Come on, I saw it on the video.”
I groaned. I’ll have to pull it out and put it in a towel. “Okay.” I raised my hand and my cock rose up. The outline of my entire erection was clearly visible in my silk gym shorts, up to the swollen head and halfway up my thighs. We both just stared at it.
“Oh my god, you’re amazing. No wonder Mandy doesn’t have time for me anymore.” “Keep watching your video. Do you need to jerk off?”
“Hey! That’s not fair. Leave me alone and let me try to relax so things can calm down.”
But we still just kept watching it. I swear I could smell her pussy as she sat on my face.
“It’s not going away, is it?”
I groaned. “No.”
“Just jerk off and get it over with. I won’t tell anyone.”
My sweet, innocent sister told me to masturbate while she sat twelve inches away from me, staring at the hole in my shorts that left me only three pumps away from exploding. “Really? That’s so bad. Reach into the bag in front of you and get some tissues.”
She smiled, eagerly grabbed a tissue and tore one off.
“You better make it into two parts please.”
She looked at my cock, then at the tissue in her hand, a worried look on her face, but she grabbed another towel.
“Okay. Are you going to give them to me?”
“I’ll hold the towel so you can concentrate,” she pointed to the problem with her head.
To make sure it was safe to stroke my cock in front of my sister, I looked over the front of the car and out the window. Ha! I pulled my shorts up and my angry cock jutted out like a swollen diving board. It was rock hard and oozing precum.
“God, that’s a good cock,” Kirsten whispered. Her mouth was open and her eyes were fixed on my manhood.
I grabbed his head and lubricated my hands with pre-cum. I started stroking slowly because I was sensitive and it felt good. I moaned and lifted my hips up. More pre-cum came out. “Okay, I’m going to cum in about 15 seconds. Give me the towel.”
Kirsten didn’t respond. She was in a trance, holding my tissue in her right hand and her left hand reaching between her legs and grabbing her crotch.
“Oh crap. Kirsten, towel!”
When she realized she was grabbing her pussy she groped the towel. She panicked, turned towards me, put her hands in front of my cock and put her arms on my thighs.
I stroked faster and my orgasm reached the highest level I had ever felt. I glanced over and found that the front of Kerstin’s top was open, revealing her white, brown breasts with hard pink nipples. That was it. My cock started throbbing and shot a stream of semen into my sister’s tiny hand. She gasped in surprise but didn’t move as my cock shot out a large amount of semen. The huge load in Kerstin’s hand made me so excited that I was seeing stars. My prostate and testicles started throbbing so hard that they almost hurt. My cock throbbed as the semen shot out. Eventually the semen stopped flowing. It felt like heroin was flowing into my bloodstream and a warm cloud of pleasure flowed through my body.
Sister’s face was flushed and glowing. “I can’t believe I saw my brother masturbating in his hand. Oh my god, he looked like shit in his hand.” “Bring me towels, I can’t reach them and your cum will be everywhere.”
I was surprised and my cock was still hard. The towel was lying on the floor of the car near Kirsten’s feet. I had to reach down and put my hand between her thighs. Kirsten moaned softly. With the change of position the head of my cock was in her slender hand. I grabbed the towel and straightened up.
“The smell of semen is very strong in here,” Kirsten said. “What are we going to do with a big ball of sticky paper? It’ll be so stinky that Mom and Dad will smell it.”
“I don’t know, throw it out the window?”
“We can’t even reach the rolled down windows. Besides, Mom will flip out if we throw stuff out and litter. It’s fine. Don’t worry, but I’ll, uh, clean it up after us.”
“What do you mean?” I said.
“I mean I’ll just lick it and swallow it. It’s not like poison. Girls swallow it all the time.”
“Yeah, girls swallow their brothers’ cum all the time,” I said sarcastically. “Mandy always says it. You can do whatever you want.”
“Okay, but don’t look. Close your eyes.”
As soon as she removed her hands from my legs, I closed my eyes. I opened my mouth when I heard her mouth open, just in time to see my sister’s eyes roll back as her tongue licked a load of cum from her fingers. She pulled it into her mouth and swallowed it. Her body began to shake and her legs clenched together. She closed her eyes, opened her wet mouth and licked up all of my cum.
I’m still hard and excited. I’ve already masturbated in front of her, why not now? I stroked my cock slowly, looking at Kerstin’s pink tongue and lips covered with my sticky semen. I let out an involuntary groan, and Kerstin opened her eyes and stuffed three fingers into her mouth.
She looked at me stroking my cock again and said, “Oh fuck,” and moved her cleanest hand to her thighs. She continued to suck her finger while rubbing small circles around her clit and watching me masturbate again.
“Are you going to cum again?” she asked.
“I think so too.”
“I never thought eating cum could be so exciting. I’ve never taken a guy’s cum in my mouth before, so I didn’t know it tasted like liquid testosterone.”
“Take your top down and let me see your tits,” I ordered.
She slid the sleeves down from her shoulders without hesitation, her plump little tits popping out of the shirt. She put three fingers in her mouth and sucked them, rubbing her pussy with her hands without stopping. I watched all this, stroking her like crazy, while my sister looked straight at my cock.
My sister was so happy she almost cried. “Oh my god, I’m about to cum!”
“Me too. Get me a towel before it’s too late.”
“Oh oh, fuck. I’m just cumming in my mouth.” She jumped on my lap and put the head of my cock between her lips.
Oh my god, I masturbated right into my sister’s mouth! A stream of cum shot out of the dark recess deep in my pelvis and filled Kirsten’s sucking mouth. She whimpered and sucked down my pulsing semen. She let out a muffled scream, clenched her hips and pressed her mouth down on my cock until the head was deep in her throat. The throbbing slowed and she slid her lips up and down my cock, squeezing out the last few drops.
“Okay, okay, it’s very sensitive.”
When she pulled away he sucked hard, swallowed and sat up. “Wow. I’ve never cum so hard in my life. So good!”
“Yeah, that’s pretty crazy.” I pulled my cock away and Kerstin said goodbye.
“I wish we could see her again.” He pulled his shirt up and slid his shorts off his hips. “I’m going to take a nap now.”
“Good idea.”
I fell into a deep arousal-induced stupor and dreamed of girls wearing tiny bikinis and getting tanned. I awoke when the car suddenly stopped in the motel parking lot. Kirsten fell asleep with her head in my lap, my hands cupping her breasts. I could feel a hard nipple under my palm. I gently moved my hand and pinched her nipple. Kirsten’s eyes opened. I told her, “You better wake up. We’re here.”
“Let go of my nipples, I’ll let go. Are you hard again?”
“We’re here. Let’s get out of here. My legs are falling asleep.”
We checked into the motel, had a quick and greasy fast food dinner and then headed back to our room. Our parents told us not to stay late and headed to our rooms. Kerstin and I managed to erase the memories of what had happened for a while, having enough time to eat and socialize with Mom and Dad. But now that we were alone, the sexual energy was surging again and my cock was getting bigger with every step away from the room. I opened the door and Kirstin walked past me, her soft warm skin sliding over my arm. I was so excited I could have fucked her right at the door.
Without saying anything, Kerstin took the bag into the bathroom and closed the door. She heard the shower turn on so I took off my clothes and stayed in my shorts for the night. I lay down on the bed and read emails for a while, but soon my girlfriend’s videos started playing for my perverted pleasure. I looked at my girlfriend but couldn’t stop thinking about my sister. Kerstin took a long shower, so I slowly stroked myself to pass the time. Eventually, she came out of the bathroom but I had put down the phone and covered my legs with the sheet.
“That feels so good. I feel relaxed.” She was wearing a thin t-shirt, just long enough to cover her round butt. “Do we have a movie about this thing?” She leaned over and turned on the TV, positioning the channel so that I had a perverted dream of a brown white ass covered only by a small g-string protection. She found a stupid reality show and got on the bed next to me. She lay on her stomach with her back to me, her ass exposed again for my pleasure.
Kerstin moved her legs indifferently, watching. I was not interested in the TV, I just kept looking at my sister’s ass and watching her legs slowly spread apart. Half of her ass was out of the T-shirt and I could clearly see her exposed labia through her wet panties. As she moved I saw that her anus was barely covered by the thong.
The TV show ended and Kerstin turned off the TV and turned her head towards me. “Can I watch your homemade porn before I go to bed?”
“Do you think this is a good idea?”
“I don’t think I’ll be able to sleep without seeing your cock again and making myself cum.”
I gave her the phone. She held the phone in one hand and put the other hand under her body and started rubbing her pussy three feet from my face. She moaned loudly and hung up. “Fuck. I want more.” She stood on my legs and pushed her ass against my head. “I took care of you today, now it’s your turn.”
She pulled her thong down, lifted her ass in the air, then rested on her elbows and continued watching my video of me fucking her friend. I don’t need another invitation. I grabbed her hips, leaned forward, opened my mouth and slowly ran my tongue through her wet pussy, from her clit to her ass. Kerstin moaned, her body trembling slightly. Pure liquid sex flowed from her pink lips and it tasted even better than my girlfriend’s cum. I lightly licked her lips with my tongue, but Kerstin groaned and pushed her ass back into my face, so I sucked her clitoris with my teeth and licked it faster with my tongue. She was shivering with pleasure and almost crying. Soon she was cumming on my mouth. I inserted my tongue into her pussy and was rewarded with more cum and quivering contractions.
“Oh my god, don’t stop! I’m about to cum again.”
I thought I would take advantage of my position and her highly aroused state to indulge in my erotic antics. My nose was almost buried in her ass, so I figured she would not mind my tongue. I rubbed her clit with my thumb and explored her wet, bulging asshole. I spread her fair cheeks and touched her asshole with my tongue. The musky smell of her pussy and ass made my cock throb and drip an ounce of semen.
“Yes! Put your tongue in my ass, Michael! I’m cumming!”
I eagerly pushed the tip of my tongue into her tight rectum. I spread it wider and slid my tongue as far into her hole as I could. My sister tasted sweet and clean as my tongue fucked her asshole and rubbed her swollen clit.
“Fuck my ass with your tongue! I can feel it deep inside me!” Kirsten was shaking and breathing heavily. “Oh God, I can’t stop cumming. Don’t stop!”
My face was covered in her juices. I moved my tongue back to her clit and alternately fucked her pussy and worked her clit with my tongue until she screamed and shot some cum into my mouth.
“Wait, wait, wait,” Kirsten begged before collapsing onto my body and legs. Her breathing was still deep and fast. “Oh fuck, I’m so happy! I think this is my first time too. Are you okay? Do you like this as much as I do?”
“Oh god yes! This is incredible! I could lick your pussy and ass all night long.”
“Oh my god, I can’t believe I begged my brother to eat my ass hole. But it feels so good! I’m so into you right now, it’s crazy.” . “Are you ready to cum again?” Kerstin asked, looking hungrily at my cock.
“You’re turning me on. Do you want to suck it again?”
“Yes, please,” Kerstin laughed. “I want you to be on top this time, I want you to fuck my mouth.”
“Oh my god, Kerstin! I think we’re all crazy now. Let’s do this!”
She rolled over onto her back and I grabbed her breasts, my cock bouncing against her.
“Your nipples are so hard. Your nipples are really cute and your nipples are perfect.” I rubbed the head of my cock on her breasts which made my semen squirt out again. I brought my cock to her mouth and gently moved it around her plump pink lips. “Stick out your tongue,” she agreed, and I squeezed a big drop of slippery, clear semen onto her wet tongue. We both moaned at the same time.
“Treat me like a sex toy,” Kerstin said. “Fuck my face until I cum.”
I gave her a sensual smile and put her head on the pillow. “Didi, do you want to be treated like my personal whore? Open your mouth and stick your tongue out.” I gently slapped her tongue and lips with my cock, which turned her on even more.
“I love your cock, Michael. It’s so big and perfect. Even your balls are sexy.”
I reached forward and put my testicles in her mouth. “Suck and lick my balls, sweet little Kirsten.”
She opened her mouth wide and tried to take both balls in her mouth. She grabbed my ass and pushed my cock into her face. She started whimpering and moaning as her tongue swirled around my balls and shit and almost reached my asshole.
I couldn’t take it anymore. I steadied myself on the headboard with one hand and with the other pushed my swollen, wet cock into her mouth. I hit Kerstin in the back of her throat and her eyes widened. I took a step back but soon shoved my cock deeper inside. Kerstin closed her mouth and rolled her eyes back. She let out a low, encouraging moan. I started pumping my hips and fucking her mouth, gradually increasing the speed, pushing the swollen head deeper into her throat each time.
Kirsten grabbed my balls with one hand and slid a finger between my ass cheeks until she reached my sensitive hole. She used her other hand to pull me closer and encourage me to fuck her deeper.
I know it won’t take long now. When I saw my cock go in and out of Kirsten’s lips, it seemed so big. I put one hand on the back of her head and pushed my whole cock into her throat until my balls were resting on my sister’s chin. Kirsten’s eyes widened. I took a step back, but then moved forward. One of Kerstin’s hands left my ass and went straight to her pussy. I continued to fuck my sister’s throat faster, inserting my fingers into her pussy and almost crying out with pleasure.
“I’m going to cum down your throat, beautiful little whore!” I yelled as my cock expanded every inch of her throat and spewed a volcano of cum. Kirsten screamed and my whole body was shaking and thrusting. She sucked and swallowed my flowing cum, our eyes meeting with a primal, animalistic lust I had never felt before. It felt like the universe was climaxing with us.
