Step-sister’s Failing Marriage [incest] [M] [F] [cheat] [oral] [mast] [swallow]

Mallory’s mom married my dad when we were in our late teens. By that point in time, we really didn’t care about a step-sibling because we had our own lives, and soon, we’d be off to college. Mallory and I were basically roommates, only saying hey if we walked past each other.

After college, we barely spoke. Maybe I’d like a post of hers on Facebook. If she wasn’t traveling abroad, I’d see her at Thanksgiving or Christmas. She got married, had a kid. I had a girlfriend, didn’t want kids.

I moved to NYC. A year later, Mallory called to say she was coming to NYC for work, but her assistant forgot to book her a hotel room and she was scrambling and —

“Say no more, you can stay with me.”

The next night, Mallory took an Uber from Penn Station to my apartment. We hugged. I hadn’t seen her in years and was stunned by how beautiful she was. I showed her to my room. “I’ll sleep on the sofa,” I said.

“Oh, you don’t have to. I’ll take the sofa. It’s okay. I really don’t mind. Actually, I sleep on the sofa most days, now, so …”

She trailed off, nervously. Her eyes darted around.

“You do?” I asked. “Why? Are you and Jared –”

“It’s not great, okay?” She snipped like a bratty older sister would. Except we never really had that sort of relationship, so I was surprised.

“Sorry. Sorry … it’s not great at all. He’s a great dad, but … that’s all. He’s a terrible husband, he’s lazy, he’s fat, he’s unemployed and in debt up to his eyeballs. We basically live apart. He has his own money and bank accounts, I have my own. I pay for everything. He’s a mooch and a bastard and he’s a TRUMP SUPPORTER. But, he’s a good dad and … so, look, it’s just easier to stay at this point.”

“Well, I hope you don’t get pregnant again,” I said.

“I won’t.”

“Birth control?”

“Better than that. No sex. We haven’t had sex in two years. We haven’t kissed! Oy, oy, oy. Sometimes I just want to have an affair.”

“I mean … why don’t you? Really, if you’re basically roommates at this point, tell him you want an open marriage.”

“He’d never go for it.”

“Well, if you’re not leaving, and you’re not having sex with him … I donno what to say? Life is short. Have an affair if it’ll make you happy.”

“Maybe … but … with who? I mean, he has to have something to lose, you know, so he’ll keep his mouth shut. He has to be married and have kids. And the affair needs to happen during the day, for obvious reasons. So, he needs to maybe work from home.”

“Hmm,” I said.

“I went on Craigslist once. Tried to find someone. But he wasn’t my type.”

“What’s your type?”

“Muscular, beard, you know. Tall, dark and handsome.”

I listened to Mallory talk. She was describing me.

“You know anyone who fits that bill?” She asked.

“I do. But his name is Stan.”

“YOU?” Mallory laughed. “You’re a bad boy.”

“I mean, I work from home. I’m tall, muscular, I’ve got a beard. I know – I’m just messing with you.”

“Mm-hmm. Anyway, Sasha would be pissed.”

Was Mallory really considering this?

“She wouldn’t find out. Why would I tell her?”

“I don’t know.”

“C’mon. I slept with my step-sister? You say you want to find a guy with something to lose – well, respect. If I fuck my step-sister, I’ll lose all the respect I have.”

“You WANT to fuck me? What about Sasha? Aren’t you guys happy?”

“We’re headed towards a break up,” I said. “She wants kids. I don’t.”

“Ehh … fuck it,” Mallory said, stripping her shirt off and hurling it onto the sofa. “I need a cock.”

Mallory pushed me onto the sofa and soon, my cock was in her mouth and she was slurping and sucking up all the saliva. Her mouth was amazing. Better than anything I’d ever felt. It was wet, drool ran down her chin and when it did, she’d wipe it away with her forearm and continued deep throating.

She didn’t wince. She didn’t gag or cough. She was an expert, taking all of me with ease. Her nose smashing into my pelvis. Her green eyes locked on mine. Her strawberry blonde hair pulled back in a pony tail. Her milky white skin and perky small breasts.

Mallory was perfect, but she liked it rough. I could tell. I pushed her off and hoisted her around, dropping her on the sofa, her legs against the wall, her head dangling off the back.

She opened her mouth and I pushed my cock down her throat. I fucked, treating her mouth like a pussy, while I maneuvered her pants off, undoing her fly, zipping it down, shuffling her jeans and panties down to her ankles.

Her pussy was amazing. She had a thick red bush and bright pink lips. And her pussy was even pinker on the inside when I tongued her clit and moved her lips around.

She moaned, grasping onto my hips and humming with pleasure as I fucked her face relentlessly. Soon, she was coughing and gagging, but never tapped on my leg to stop. I could hear the puddles of saliva splattering onto the hardwood floors as I ate her pussy and fingered her cunt and made her orgasm.

She collapsed with exhaustion, sliding into her puddle of spit on the floor. Her face was streaked with drool, her eyelashes and hair soaking wet with spit.

She gasped with delight and crawled onto her hands and knees.

I spread her ass cheeks and guided my cock inside of her pussy. She dripped with pleasure.

“You’re so tight,” I announced as I pushed into her. She groaned and took me all. I held onto her hips and thrusted in and out as she masturbated.

“You’re good,” she said. “Or maybe you suck and I’m just so cock hungry I don’t care.”

I slapped her ass. She giggled. Soon, I was on the sofa and she was straddling me, her tits in my face. She bounced up and down, her ass slapping against my thighs.

“I’m gonna cum!” She announced as she rode faster. Her finger trembled closer and closer to her pussy and as soon as she put her finger on her clit, she came, writhing with pleasure, moaning, squeezing her tits.

She collapsed onto the floor, got on her hands and knees, crawled towards me and took my cock into her mouth, licking up the juices.

“Damn, my pussy tastes good,” she declared.

I nodded and leaned back as she sucked and jerked.

“I’m gonna cum,” I announced.

She pushed me back into the sofa and stood, bending at her hips, she swallowed my cock whole and ran her tongue around my shaft, sucking passionately until I gushed, firing off at least six strings of jizz into her mouth.

She coughed, probably from the impact, drank my cum and stood up.

“I needed that,” she said, licking her lips and standing there, nude, before me.

“That was incredible,” I said as my cock still bounced up and down, glistening with saliva.

“Don’t tell mom,” Mallory said with a wink as she bent over, grabbing her clothes from the floor. She slapped her ass and winked at me.

Source: reddit.com/r/sexystories/comments/7a422m/stepsisters_failing_marriage_incest_m_f_cheat

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