Uncontrollable Urges

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All sex acts in this story are with consenting adults 18 and over.

Uncontrollable Urges

Jen, my younger sister, is subject to frequent sexual manias that typically peak around midnight. Her symptoms include chronic masturbation, high-risk hookups, and deviant sexual behavior. Since we live in the middle of nowhere, I am her primary sexual outlet. And nothing quiesces her manias better than a run of consecutive orgasms that can go on for hours. But I'm not the only person servicing her uncontrollable urges. She is always on Tinder.

She has met strangers in parking lots, public parks, and back alleys. She likes the thrill of public sex and has been arrested twice for indecent exposure. But after a scary gang bang encounter in Spokane, she no longer leaves the house to satisfy her cravings. Instead, we host females and couples, preferably brothers and sisters.

It was just past midnight, and Jen and I were in the jacuzzi tub, facing each other, with her feet on my chest. We were smoking weed, giggling, and feeling no pain. Until I brought up our mother.

"She's not living with us," grumbled Jen. "She was never in our lives when we were growing up, and she's sure as shit not gonna start now."

Our mother, Rachel, is a Master Sergeant in the Army and currently stationed in Texas. We were raised by our father and had very little contact with her, other than once a year for a weekend. But she's retiring and wants to live with us.

"She'll pay rent."

"And she'll ruin our sex life."

"She can stay in the guest house. She won't know."

"The fuck she won't. She already thinks we're fucking."

"How do you know?"

"She told me that beautiful women should never live with their brothers." Mom is right about that. My sister's pretty face and athletic body will tempt any family member, especially out here in the middle of nowhere.

"What did you say?"

"I told her to mind her own business."

"That sounds too much like a confession."

"Fuck her. There's nothing wrong with us. We should just tell her the truth."

"She'll never talk to us again."

"Good."

"I'd like to have a mom for once in my life."

"Austin, you're not fooling anyone. I know you want to fuck her."

I would deny it, except that Jen knows me too well. She sat up, gliding her perky breasts along my stomach, then pressing her studded nipples into my chest. Her long tongue, stud and all, slipped across my lips and pressed against mine. After some very deep tongue kissing, Jen licked her way down my chest, along my stomach, until I felt the warmth and wetness of her mouth as it surrounded my crown. She teased my urethra with her tongue stud before licking up and down my shaft.

She loves to suck cock and focused her stud right on my frenulum. She tightened her mouth around my shaft, making it feel like a very snug vagina, and let me push my cock into the back of her throat. I roughly grabbed onto her hair, holding her head still, and pumped her mouth just like I fuck her pussy. I unloaded a gusher, and my sister collected it on her tongue. She slid back up my body and spit the cum all over my nipples.

"I love you," she whispered, before sucking the sperm off my nipples like she was breastfeeding. After lapping it all up and swallowing, she gripped my still-erect shaft and guided it into her oozing red warmth, driving all the way down on me as she started up her perverted dirty talk. Even though she doesn't like our mom, she's attracted to her body. And she loves to talk about incest while we're having incest.

"You just want inside her pussy, Austin."

"Why not, Jen? We can fuck her every night. And you can eat my cum out of her pussy."

The family sex talk hits hard with Jen, and she moaned and groaned as she drove down hard on me, making the water slosh out of the tub.

"I'll do it. I'll clean up her messy cunt and spit it in her mouth and make her eat it."

She drove her hot tongue into my mouth as she exploded in euphoric rapture. Her spasms were strong and lasted a minute before they finally subsided. The perverted demon that lives inside my sister was satiated. For about five minutes.

* * * *

The next day, we picked mom up at Spokane International Airport and were surprised by all her new Botox work. Her wrinkles were gone, and her lips were full and pouty. She dyed her hair black and was sporting a new tattoo on her left shoulder, a purple heart with her father's name across it.

It was a very cold reunion, with short hugs and forced smiles. After some insipid small talk, we finally got out of the airport and were driving south on the 195. That's when mom began her inquisition.

"Do you have a boyfriend, Jen?"

"No one in particular, mom."

"You're such a beautiful girl. You should move to the city. You'll be fighting off all the rich guys."

"I hate the city."

"How about you, Austin? You seeing someone?"

"I haven't found anyone I like."

"Well, when I move in, I'm going to get you settled down."

Jen quickly rebuked mom's self-invitation. "No one said you could move in."

"Why is that a problem, Jen? Are you hiding something from me?"

"Just come out and say it, mom. Say it to our faces."

"I'm not fucking blind, Jen. You're a couple. That's why you don't want me here."

"We don't want you here because we don't like you."

From that point on, not one word was spoken by any of us until we got home. Jen went straight upstairs to her bedroom, and I escorted mom to the guest house. I unlocked the door and deposited her suitcase in the entryway.

"Well, I got work to do. There are fresh towels in your bathroom. I'll be in the greenhouse, so text me if you need anything."

"Austin, are you having sex with your sister?"

"Don't be ridiculous, mom. And you better drop the subject, otherwise Jen is going to kick you out of here."

* * * *

"Austin, come on, I'm going crazy."

Mom stayed in the guesthouse all evening, which was good, as Jen was having another mania, and needed my cock. But I didn't feel comfortable, as mom has the code to our house and walks in whenever she wants.

"Mom is still awake."

"Who gives a shit? She can watch for all I care."

Jen quickly lost her skimpy t-shirt and workout shorts, pushed me down on the bed, and jumped on top of me, giggling as she pulled off my clothes. The savage was loose, and she kissed me so hard that my lips were burning. When Jen's eyes get that lusty evil gleam, the sex always gets out of control.

"Get me pregnant tonight."

"Jen, calm down."

"I can't. I need to get pregnant. Come on, let's get in the shower."

When Jen is like this, she needs to break barriers. And getting pregnant by her brother is definitely a barrier. I've cum in her pussy a thousand times with no protection, and she hasn't gotten pregnant yet. So, one of us has a fertility problem. But her pregnancy fetish is so intense that she practices deep vaginal stretching and will even drink my urine as she thinks it reduces her immune response to my sperm.

I got off the bed and followed her into her shower, where she keeps her favorite oversized sex toys. One has a bulbous head thicker than the barrel of a baseball bat, designed to stretch her vagina at the cervix. It doesn't look like it will fit, but when she's going crazy, she will force it inside and really slam down hard on it.

"Are you doing your ass too?"

"Just my pussy. Can you pee?"

"I'm ready." My job was easy. We get in the shower, and she licks and fingers my asshole to stimulate my semen production while she squats down and humps the monster sex toy until she orgasms. And she insists that the golden shower makes her cum harder.

The toy has a suction cup on the bottom, and she fastened it securely to the tile floor. She squatted down and went through the arduous process of getting it inside her. She sounded like she was trying to deadlift three hundred pounds, but once again, I was shocked at how deep it went inside her.

"Doesn't that hurt?"

"It's a process, bro. Come on, let's get your sperm going. Turn around."

I leaned into the shower wall and felt her hands on my butt cheeks. She pulled them apart, and I felt her tongue stud on my anus. While her stud doesn't do much for blow jobs, it makes a huge difference for her analingus. Between her magic tongue and two-fingered prostate massage, I was really having trouble focusing on urination. I turned my head to witness the unbelievable flexibility of her vagina. That toy is a foot long, and most of it disappeared into her cunt when she pushed all the way down on it.

"Oh fuck," she gasped, after pulling her fingers out of my ass. She doesn't even need to touch her clit, the simple act of abnormally stretching her pussy makes her cum hard.

"I'm cumming!"

I turned, pointed my cock at her breasts, and let it go. She drove down hard on the massive toy and took my peeing cock into her mouth. And she didn't spill a drop. She swallowed as her orgasm rumbled all through her body. Drinking pee is something she will do to anyone, especially when she's crazy like this. I turned on the shower and washed her off, then we went to her bed where she spread her legs and exposed her gaping pink gash to me.

"Jen, you're really stretched wide. It looks like you damaged your cunt."

"It's wide open, big brother. Now you can get me pregnant."

She has such fierce eyes when she's this horny, like she's possessed. I got into position, my cockhead just an inch from her freakishly gaped hole that looked like a blooming red rose. I slid it into her and felt nothing until I rubbed the underbelly of my cock against her lower pussy wall. She's never been this loose. She wrapped her legs around me and pressed her lips so hard against mine that our teeth clattered together. And I shot so much cum into her guts that she's going to be leaking for a week.

"I'm cumming."

"Shoot that baby shit inside me!"

We kissed wildly, tongues tangling until she lost all control and bit down hard on my lower lip.

"Ow, Jen, fuck!"

"Don't be a bitch, you love it and you know it. Come on, pull out, I wanna check your cum."

I got off, fell on my back, and Jen put two fingers inside her pussy and moved them around. It sounded like she was splashing through a puddle. She pulled her fingers out and put them in her mouth.

"Fuck, Austin, that was a load."

"Yeah, it was. I feel like you just stole my life force."

"Don't die on me yet, bro. I need your fist tonight."

"Aren't you sore?"

"I cum harder when it's sore."

* * * *

It was another crazy night, as Jen had well over a dozen orgasms before she got the evil out of her system and could fall asleep. And she can sleep all day. But I can't. I woke up at ten and checked my phone. There was a text from mom.

"I NEED TO TALK TO YOU. NOW."

Shit. I put on a robe, walked down the path to the guest house, and knocked on her front door.

"Come in."

Heart thumping, I opened the door to find her in the living room sitting on the couch. "Sit down, Austin. I need to talk to you."

"About what?"

"I came in your house last night."

"What for?"

"A bottle of wine. And you know what I heard?"

"No."

"Jen screaming."

The jig was up, it was time to come clean. The worst thing that would happen was that mom would leave and never see us again. And that was probably the best thing.

"Mom, you can leave anytime you want. I'll give you a ride to the airport."

Mom glared at me for a few unnerving seconds. "You and Jen must hate me. That's why you have sex. To hurt me."

"We don't even know you well enough to hate you. You're just someone we saw once a year for a few days. How do you expect us to act?"

"You know why I wanted to live here?"

"No."

"I wanted us to finally be a family."

I laughed. "You're a little late to the party, mom."

"Why can't we at least give it a try?"

"Jen and I are in love. And we're not going to break up just because you've suddenly decided you want to have a family."

"Austin, you're a handsome boy. Why have sex with the same woman for the rest of your life?"

"I have sex with other women, mom. And Jen knows all about it."

"You're open?"

"We swap."

"With who?"

"Other couples. Usually brothers and sisters."

Mom averted her eyes to the window and looked passively into the distance. It was the end of her dream. She came here hoping that she could finally be a mother, but now she looked dull and lifeless. Not only were her children having incest, they were swinging with other incestuous couples.

"So, you see mom, we love our lifestyle, and we're not going to lose it for some stupid idea you had about becoming a family. So why don't you pack? I'll book you a flight."

"No, I'm not leaving."

"It's not your choice, mom."

"It is my choice, and I'm not leaving. Sit down, I need to tell you something." By the look on her face, it was something sinister. I sat next to her, and she looked me squarely in the eye. "I don't know who I thought I was fooling."

"What are you talking about?"

"I had sex with my father, Austin. When my mom found out, I joined the Army. That's why I never saw you. Every time I got leave, I had to be with him. Until he died."

"Holy shit."

"Yeah, holy shit is right. Some fucking mother you got, huh? I don't know what to tell you, other than I was a terrible mother. And I was never serious about that stupid family bullshit I was trying to force on you. It was all a lie."

"A lie?"

"I knew you and Jen were fucking. I just wanted to take her place."

"You serious, mom?"

"It takes a pretty fucked up mother to want to fuck her own son. But that's who I really am. I know you're into incest, Austin, you're fucking Jen every night, aren't you?"

"Uh huh."

"Then how about me? Don't you want to cum in your mother's cunt?"

That gave me chills. She never cared about salvaging her family at all. It was all a scheme to get Jen out of the way. Since she lost her father, I was next in line to her throne.

"Mom, I'm not leaving Jen. But we can work something out if you are flexible."

"I'm very flexible, Austin. I love quickies. I've done a million of them. And I keep my mouth shut. Jen will never know."

"Jen is very intuitive, mother, it will be hard to have sex under her nose."

"But she leaves the house to go shopping, right?"

"Yeah, every few days."

"I'll do this any way you say, Austin. I just need to be with you."

"Jen thinks you will stop us from having sex. That's why she doesn't want you here."

"I'll tell her that it's okay. I'll tell her I think it's fucking hot. I'll do it right now. Is she awake?"

"No."

"Well, come on my son, let's get this done."

She undid her robe. My eyes were instantly drawn to her puffy mons, which was shiny and smooth. She had two golden studs bracketing her bulbous clit and there was a cursive tattoo on her mons that read 'Daddy'. Her supple breasts hung well, and her pierced nipples looked exactly like Jen's.

"When did you get your 'Daddy' tattoo?"

"A few days after he fucked me. His friend did the tattoo."

"His friend?"

"Dad had a lot of friends with daughters. Like a little sex club. That's when I realized that everyone was into incest. It's what keeps families together."

Her first kiss gave me goosebumps. She feels so deliciously wicked, just like Jen. She loves teasing my tongue, sucking it into her mouth, like she was giving it a blow job. Her hand gripped my leaking shaft and squeezed it tight. She spread her legs and teased me with four golden labia rings. This was the pussy of a woman totally obsessed with sex.

"You like mommy's rings, baby?"

"Very sexy, mom. You like bling, don't you?"

"Very popular at orgies. Guys always want to see how the rings feel. Now lean back, I'm dying to suck your cock."

Her lips slipped over my crown and her tongue licked the underbelly of my shaft. She hungrily bobbed her head up and down as she suctioned my precum onto her tongue. After giving me an intense sucking, she pulled her mouth off, only to focus her tongue directly on my balls, lathering them up, and sucking each one while she trained her dirty blue eyes on mine.

"You feel that, baby? You feel that incest feeling?"

"Yeah, mom, it feels so natural."

"No other sex feels like that. No other sex comes close. Now pull your legs back."

Her fingertip tickled my anus as her tongue licked all over my undercarriage. She went lower, her tongue basting my perineum before licking into my anus. She gives deep rim and likes to watch my expression as she does it. After lubing me up, she inserted her finger and went right for my prostate.

"You really know how to get men off, don't you mom?"

"I'm an Army girl, baby. I was born to get men off."

She ran her tongue all over my scrotum as she pounded her finger into my prostate. I was leaking heavily, and the precum dripped down my shaft. She licked it clean before checking in on me.

"You about to cum, baby?"

"Yes, mommy."

"Hold on. I wanna cum with you."

She came to her feet and pushed her sumptuous cunt right into my face. I got a good look at the meatiest clit I've ever seen. She pulled back her clitoral hood and exposed her pink mushroom to me.

"It's big, mom."

"I pump it, baby, every day. Makes me cum. Now come on, suck it. I want you to fall in love with your mother's clit. Suck your mom off."

I gave it all I got, lavishing it as I slipped two fingers into her juicy warm hole, pressing my fingertips hard into her g-spot. She was about to cum, when she dropped down on the couch, spread her legs, and exposed her wide-open red rose. I got down on my knees and sunk my tongue into the musty sweetness. This was incestuous heaven, and I was on the verge of a massive ejaculation without even putting it in her.

"I'm right there. Come on, put it in. Empty your balls inside mom."

I got into position, guided it in, and savored the memorable moment of the first penetration of my mother. It was perfection. She was oozing wet, and I moved my cock all around to experience every inch of her silky-smooth pussy walls.

"Pump me hard, baby. Deep. As deep as you can go."

I pushed it all the way in. Her pussy, a little loose just seconds ago, clamped down on my shaft. She has exceptional muscle control, clenching me harder with each of my deep thrusts. I was really getting up into her, and she was pushing back onto me, forcing me so deep that I pounded my cockhead into her cervix. And that started her orgasm.

"FUCK, I LOVE YOU!"

Our lips slammed together as my sperm erupted and shot right into her spasming cervix. She screamed as she dug her fingernails into my back. It was a baby maker, and I've never pumped so much sperm into any woman in my entire life.

"Give me your cock, baby, I wanna taste your cum."

I pulled out of her pussy, and she sat right up and wrapped her lips around my crown, sucking the oozing sperm onto her tongue. She swallowed everything, then licked her lips clean. We came to our feet, and her studded nipples grazed along my chest until they were pressed against mine. She gave me an incredible and very loving tongue kiss.

We never connected as a mother and son. Until now. For the first time in my life, I felt real love for her. It was some crazy amalgamation of romantic and family love, but it felt so warm and natural, like my love for Jen.

"Mom, I love you."

She hugged me tightly, her lips pressed against my ear. "Austin, I'm so sorry I was never there for you."

Amid the glow of first incest, I was able to put everything behind me. "All is forgiven, mom."

"I love you, Austin. More than you could ever know."