Backseat: Sister Rides Brother’s Lap

Author’s note: This is a series. In chronological order:

Backseat Ride: Sitting on Son’s Lap

Backseat Ride: Son’s Sex Education

Backseat Ride: Fucking Sister / Mom

Backseat: Sister Seduces Brother

Backseat: Sister/Brother First Time

Backseat: Sister Rides Brothers Lap

***

I didn’t intend to cum, loudly, while riding my brother’s hard shaft in the back seat of a big black SUV. Especially while my mother, Aleja, drove.

Hmmm… guess that was an overly specific denial.

Take two. I didn’t intend to car-ride my brother, Lucus, AT ALL. Much less with a parent a few feet away.

And I REALLY didn’t foresee that turning into a threesome seduction with my brother and mom.

If all that seems TMI, bear in mind that I’m typing this one-handed on a keyboard into a story draft on Literotica, remembering, while I quietly jill off, rubbing my soaking wet pussy and clit…

Quietly, since my naked brother and mom are sleeping next to me on our king sized bed, my mom snuggled up to him from behind, her curves pressed against his strong back and firm butt, her smooth dark olive skin a lovely contrast to his paler, slightly freckled skin.

I don’t intend to hit ‘submit for publication’ on this story, because * someone * on my college campus would figure out it was me, and then the ‘coconut wireless’ (aka gossip) would commence.

Then, passing strangers on campus would see through my shy, demure facade and know what a perverted slutty girl I actually am.

***

This morning, my mom was driving my brother, Lucus, and me from Dallas to our house near Austin, in a big Toyota SUV she had bought for Lucus at a used car lot near his college apartment. It was a older Sequoia (a name just begging for sexual double entendres, but we’re allegedly better people than that), but with an immaculate interior. It was the perfect starter car for my 18 year old brother (who’d recently totaled my parent’s Lexus while driving it at over 100 miles an hour on I-80):

1) unlikely to break down much despite almost a quarter million miles on it

2) a massive amount of sheet metal between him and the questionable decision-making processes of a testosterone-poisoned brother who still hadn’t internalized that he wasn’t immortal

3) disposably inexpensive should situational stupidity result in a loud and violent demonstration of physics. Again.

Lucus and I talked non-stop in the back seat on the first part of the drive, a meandering conversation that turned into a spirited discussion of whether ‘red’ was a flavor when I got everyone a kolache, in the Czech village of West, while Aleja topped off the gas tank.

I opened the back passenger side door and got in, while Lucus took the seat behind mom. I reached forward and put my mom’s kolache on the center console.

“Thanks, Ciara!” Aleja pushed the button to start the big engine, and wheeled our SUV toward the access road running along the freeway. Once we were headed south again on I-35, she freed a hand from the steering wheel and took a bite of her snack.

Meanwhile, I handed Lucus his kolache.

He took a bite. “Mmmm. Hot dead deer. Whatcha get for you and mom?”

“I got us red flavored fruit kolaches.”

“Red ain’t a flavor.”

Offering him a bite of my kolache: “OK, then what flavor do you think this is?”

Chews: “Mmmhh. Hmm. Raspberry? Cherry?”

“Can’t tell?”

“Tastes mainly like cane sugar.”

“Soo… red flavored.”

“You bought it. What kind did you ask for?”

“Pointed and asked for two of the red ones.”

“RED ain’t a flavor!”

“I identify as a ‘red-kolache-eater’. Don’t be a bigot and deny my lived experience.”

Aleja began slowly weaving the SUV from side to side in her traffic lane.

“What’s with the weaving?” I said.

“I’ve lost my will to live. What with you two squabbling about the definition of ‘flavor’.”

“Lucus’ life will go a whole lot smoother once he accepts that I’m always right.”

Mom said, “There’s five words, Lucus, I’d like you to memorize, and use early and often if you get in an argument with your future girlfriend or wife.”

“Hmm?”

“I’m sorry. You were right.”

“What if she’s wrong, and I’m right?”

“If you’ve married someone smarter than you –“

“A mighty low bar,” I chimed in.

Lucus stuck his tongue out. “Ppppbth.”

“… which I highly recommend — she ain’t gonna be wrong often,” Aleja said. “Humble’s a lot better look than confident but wrong.”

Lucus looked at me, just a touch of a grin at the corners of his mouth. “I’m sorry. You’re right, dear.”

I scooted to the left on the bench seat, until our thighs touched. Put an arm over his broad shoulders. “Now try it without sarcasm.”

Softer: “I’m sorry. You were right.”

Wow. He’s pretty good at faking sincerity.

I kissed his cheek. Felt a tingle in my pussy, remembering how we’d fucked the hell out of each other the past couple of days. Lucus flicked his eyes toward the driver’s seat in kocaeli escort front of him, then gave me a tiny shake of his head. A wordless, ‘No. Try to behave’.

I gave him a wicked look and kissed him gently on the lips.

He didn’t return the kiss, instead gave me a ‘have you lost your gotdamn mind, mom is right there’ stare.

I faux pouted, then leaned my head on his shoulder. Mmmmmm. He smelled so good.

Aleja said, “Wish to hell Cody had used these words every now and then. Maybe if he’d done that… oh, and not fucked every woman who’d let him… maybe I wouldn’t have had to file for separation.”

Lucus said, “Why are we visiting dad today, if you’re so over him?”

“My lawyer said I should make an effort to reconcile, work out our differences, before he drew up and served Cody with the divorce paperwork. And to take along a witness or two… that would be you and Ciara… so it’s not a ‘he said / she said’ thing.”

I said, “You’re actually planning on going back to Dad after he cheated on you with multiple skanks?”

“He said he’s made up his mind to re-commit to our marriage. I think Cody meant it in the moment, but… he’s a good looking guy with charm and lots of money. Plenty of women gonna want to take a run at him. And Cody can resist anything but temptation.”

A long pause. “I’ve gotta give it a try. I read him the riot act – I’ve got zero tolerance for him cheating on me any more. One more strike and he’s out.”

Lucus and I exchanged a look. He finally said, “Ummm, speaking of cheating, mom… you and I kinda fuc–“

“Kinda?” I said. “My understanding was there was a whoooole lotta f–“

Aleja cut me off: “That’s different. HE broke up with me. I was free to do whatever. If he’s truly repentant — I’m willing to give that whole ’til death do you part’ thing one last try.”

“Then you’ll kill him?” I said, brightly.

“Metaphorically kill, of course,” Lucus said. “The other way… soooo much paperwork and depositions. Totally not worth it.”

“Whole lotta snark filling up that back seat,” Aleja said. “We’re gonna need a bigger truck to hold it all.”

***

I must have nodded off, still cuddled up to Lucus, sometime on the ride through the monotonous stretch of countryside between Waco and Temple.

And had a hot sexy dream where someone was rubbing my pussy, making me horny —

I sleepily opened my eyes.

Oh. Fuck.

Lucus had a hand under my sundress, and had slipped a couple fingers under my panties. He was caressing my tightly curled pussy hair and gently rubbing my wet pussy lips.

I whispered in his ear, “Can I help you?” Putting a little indignation into it.

He nibbled on my earlobe, sending a sizzling jolt into my head. I suppressed a moan.

He whispered back, “Maybe you could pull your panties down?”

I whisper-shouted: “I wasn’t offering to help you grope me easier, dammit. Mom — two feet away!”

He slipped a finger inside my traitorous vagina, which was helpfully slick by now. “I’ll be quiet.” He kissed my ear.

I strangled back a moan. “Fu– How am I gonna be quiet when you -“

“Mmmm,” he said, starting to finger fuck me. We were still whispering. “Want me to stop?”

“Yes!”

“Yes… as in keep doing… this?” He touched my G-spot.

“I meant stop!” My hips kinda undercut my negotiating position by wiggling to get his finger back on the spot. And succeeded. “Ggggrrrruuuhh,” I growled into his ear.

“Guess I better stop then,” he murmured, his deep sexy voice full of faux innocence, with just a hint of amused skepticism. He slooowly started to slide his finger out…

I grabbed his hand. “Don’t. You. Fucking. Dare. Stop.”

“Getting mixed signals, here, little sis.” His finger resumed stroking my G-spot, while his thumb joined in by touching my clitoris. “Did you mean, ‘Don’t you fucking dare. Stop!’?”

I decided to shut up all this sassy backtalk. I slid my hand under the waistband of his shorts and underwear, and squeezed his cockhead.

His turn to smother a growl.

How the fuck was my mom oblivious to all this, even with us barely whispering to each other?

I turned my head and saw Lucus looking at me with those sexy bedroom eyes.

He leaned closer, teasing me by stopping with his lips maybe a millimeter short of mine. Forcing me to consent, if such an oxymoron makes any sense.

I felt a shock jump between the miniscule gap of our lips, like a tiny lightning bolt.

I kissed him. Softly. Then not so softly. Lucus’ tongue licked at my lips, asking for entrance.

I gave him my consent, licking back. I opened my lips, and he teased me by slowly sliding his tongue over them, like he was licking my pussy lips, and then flicking his tongue against mine, pretending it was my clit. I grabbed his hair impatiently and pressed our faces together closer, forcing his tongue to penetrate me, making him implicitly promise to give my wet pussy what it desired.

What it needed.

My heart was hammering kocasinan escort as his tongue caressed mine. The kiss lingered, a timeless bliss as our tongues slowly caressed and teased and aroused.

I slid my hand down his strong torso, stroking and squeezing his pecs — gently pinching his nipples — then feeling up the six-pack of his abs.

When my hand reached his stiffness, squeezing it through the fabric, he oh so softly moaned and tugged at my panties.

I lifted my hips, surrendering to the moment, and let him slide my panties over my curvy brown thighs, the silk caressing my skin as Lucus pulled them down to my ankles.

We probably won’t get caught, I thought, as I reciprocated, tugging down his shorts. I had to admit, Lucus’ recklessness was… exciting. His cock was stiff and warm as my fingers enveloped and stroked it, a bit of precum on the pink tip of his engorged violet red mushroom head.

Lucus grabbed my hips, and his strong arms lifted me up a bit as he slid me onto his lap, facing away from him. His stiffness cuddled against my well-padded buttocks.

“You got such a fucking sexy big booty.” Still whispering, oh so quietly, but with an undertone of urgency. He kissed the back of my neck, while sliding the straps of my French Blue sundress off my shoulders. The dress slid down and bunched around my waist. This revealed my sheer see through black lace bra that darkened my large breasts with their big brown areolas.

I heard him suppress a gasp of delight as he caressed their plump voluptuousness. My dark nipples hardened as he touched them through the thin fabric of my lingerie, then he twisted them a bit, giving a delicious touch of pain to leaven all the pleasure.

“Do you want to ride me sis?”

“Maybe,” I said, not really selling the reluctance, since I was gently wiggling my buttocks against his hard manhood and rhythmically squeezing my strong gluteal muscles.

His hands trailed down my sides, unhurriedly squeezing and tickling the curves on my sides as his fingernails scratched and tickled my skin, just the way I like it. The way I’d taught him. He rubbed and kneaded my round belly, as I momentarily wondered if he was turned off by my figure — another random drive-by insecurity. But then I realized he was touching my softly padded belly lovingly, in the exact same way he’d squeezed the voluptuous womanly curves of my heavy brown breasts, and I knew he loooved those. And my thoroughly unfounded doubts about him wanting me, desiring me exactly as I am, flitted away, dispelled by his deep growly lustful voice whispering in my ear.

By then Lucus was gently squeezing my ass. “Mmmm. Ohmygod, you have a perfect butt. So big and sexy.”

I felt heat surge through my loins, my body responding to this compliment, my head awash with delicious love-chemicals, knowing that the man I adored was so mindful and sensitive about my insecurities about my ripe lush figure. Leaving me feeling oh so desired and loved. I leaned my head back and turned it so Lucus could resume kissing me. As his tongue caressed my lips, he oh so gently tugged up on my soft buns, more of an invitation than a command.

I eagerly raised my butt up, wanting him inside me so much, and felt him reaching under and guiding his stiff cock to my soaking wet slit. Rubbing it against my dark pussy lips. Trying to tease me.

Fuck this teasing, I thought. “I need you inside me. NOW!” I swiftly sat down onto his lap, enveloping his hardness, taking him all the way inside me. Making him, for the moment, part of me. Oooohhh, it felt so good, endorphins flooding my head with lovely skyrockets of pleasure. And not just from the physical sensations, but from the emotions of feeling the man I’ve been madly in love with for years reciprocating that love, fulfilling our mutual passion by sliding deep inside my receptive wet cunt.

A few small traitorous parts of my mind whispered that this was really bad, fucking my brother, but the overwhelming majority of the clamorous multitudes inside my head gave that unsolicited advice the Strong Ignore it deserved.

I began slowly riding Lucus, flexing up a few inches then pushing him back inside me, as his hips rose to meet my thrusts, surrendering to the silky slickness of my pussy. Giving himself to me.

He pulled my back into his muscular chest, holding me tight, whispering in my ear how much he wanted me, how he loved his sexy curvy little sister. His voice was tight with an impending orgasm, a sound I had grown familiar with over the past week as he took my virginity, and then fucked me or had me suck and tease him with my mouth, several times a day. A crash course learning to please him, and letting him please me. Eighteen years of sexual drought, wanting and waiting, until I summoned the courage to smash the taboo, rejoicing in a flood of lust and love, and reassuring cuddling afterwards.

“Slow down,” Lucus whispered. “I wanna make it last.”

I rode him a bit faster. “Ain’t about what YOU kolej escort want,” I gasped.

“I’m sorry. You’re right, dear,” he murmured, sounding almost like he meant the apology, but a little frisson of amusement giving him away.

“Good boy,” I said in much the same voice you’d use on an adorable semi-bright puppy, if you were inexplicably praising said puppy while getting fucked hard by your brother in the back seat of an SUV rocketing down I-35 with your mother at the wheel, your voice heavy with lust and love.

I have a lot of weird thoughts.

“Touch me,” I moaned. “Rub my clit. Make me cum too.”

His fingers started working their magic, touching and tapping and rubbing my labia and hood and clitoris. I felt a pang of jealousy about the women he’d perfected this craft with, but then thought, nah, they’re gone. He’s MINE.

I rode Lucus faster. “Are you mine, baby?”

“All yours, sexy.”

I thanked him by squeezing my cunt muscles around his thrusting shaft.

“Fuuuck, I’m gonna cum,” Lucus murmured, his breath hot and steamy inside my ear. “Keep doing that!”

“Anything for you, baby.”

“Can I cum in you? Do you want all my hot sticky cum deep inside you?”

“Yes! Cum in me baby. I want it now!”

He changed gears and sloooowly rubbed my clit, twisting it a bit between his fingers, and I began to cum, oh so quietly, over and over. Waves of orgasms washing through my shuddering insatiable body.

Lucus growled softly in my ear and came too, thrusting deep inside me and then halting, his shaft completely enveloped by my tight wet cunt. Shooting pulse after pulse of warm sticky cum deep into my womb. Surrendering all of his cum, giving part of himself to me. His body trying its utmost to make a baby.

We lay there together, afterwards, quietly gasping for breath.

How in the hell did Aleja not notice us fucking while she drove? I thought. She’s right th–

I heard Aleja quietly clear her throat.

We froze.

“Ciara? Lucus?”

Oooohhh, fuck, here it comes… ohgod ohgod–

In a deceptively mild voice: “You’re not nearly as discreet as you might imagine.”

I was frantically trying to parse her tone of voice — did I hear anger? Bemusement? The fuck do I say now…

Lucus said, cautiously, “Ummm… are yooou–“

“It would be so ironic and hypocritical if I said you shouldn’t have done… that… when I literally recently fucked you by riding you — in the back seat — while a parent was driving.”

After a couple seconds of stunned silence, I said, “You… and Lucus? With DAD right there?”

“Lucus didn’t tell you about us… you know…”

“He told me about you two having a lot of sex before my eighteenth birthday party, when we… uhh…”

“Started fucking like bunnies?” Lucus said, brightly.

“Really?” I said. “THAT’s how you want to describe it?”

“Fine. FINE. Started * making love * like bunnies.”

An awkward silence ensued.

“Look,” mom said. “You’re adults. And I knew you two were having sex — I could see how you’ve been looking at each other, and gently touching and holding hands when you thought I wasn’t looking. As if I’d miss that.”

I stared at the back of mom’s head, since she seemed focused on keeping her eyes on the road for safety, rather than turning around to glance at us while going 80 MPH or so down I-35. Or maybe it was easier for her to talk about this incredibly awkward subject if she didn’t have to look at us.

“I get it,” mom said. “The attraction between you two. Dark and short and curvy versus fair-skinned and tall and muscular. And such obvious chemistry together… same as what your dad and I had. But — you’re still brother and sister. There’s a reason it’s taboo. You ought to date other people.”

I felt some of Lucus’ cum trickling out of my pussy, as I turned and looked in his eyes and saw so much love there.

Mine, I thought. MINE. Not gonna give him up. No way.

“We –” I started to say, at the same time Lucus said, “Fuck, no.”

I motioned with my hand — Go Ahead.

He flicked his head left then right — No, You.

While we were silently negotiating who should speak, Aleja jumped in: “Despite those articulate rebuttals, I’m asking you to accept that I know what’s right for you.”

Lucus rolled his eyes and weaved his head around, clowning it up to express a dissenting opinion.

God, I love his sense of humor.

“OK, mom,” he said. “Completely theoretically and hypothetically, let’s stipulate that I’m going to obey you and date other college girls. How do you think they’ll react if I emulate your principle?”

“Which principle?”

“That I should tell them that they should obey me, because I know better than them what’s best for them?”

A really awkward and long silence ensued, while mom processed that.

“Fair enough. I apologize. I slipped into parent mode, instead of ‘we’re equals’ mode.”

“Dammit, quit spoiling a perfectly good argument by agreeing and being reasonable and other such underhanded tactics.”

“I’ll try to listen less and yell more,” she said, deadpan.

“Now THAT’s the spirit!” Lucus grinned.

“OK.”

I waited for mom to elaborate. Nuffin’. “OK, as in I hear the words flying out of your piehole despite vehemently disagreeing, or OK as in…”