Chapter 12

Minutes passed in post-coital bliss. Perhaps Mother checked first, before I thought to look beyond our more than comfortable tangle. Nell had disappeared.

Mom felt me move. “Keep it in me, Baby.” She patted my head. I had been demoted, no longer Her Son. She was a mother telling her naughty boy how to behave.

I simply hummed, my need to dominate her was more than well satisfied. Our sloppy connection remained a source of delight. I teased her. “Going to stop taking the pill?”

She surprised me. “I don’t, Craig, haven’t for years.”

“Huh?” Was she kidding me? “But I was sure-”

“Your father’s sperm are not what they used to be. We would welcome another child.”

“B-b-b-but-”

“Incest babies?” She used a mocking tone. “I’ll take that risk to be a real mother again.”

She had to be kidding! I nearly sputtered again and looked stupider than usual. So I dive-boarded off of stupid. “What if it’s a girl who grows up like you and Nell? I’ll want to spunk a baby in your granddaughter.”

“As if I’d let you so much as breed your existing sister!” Mother scoffed, serious.

“Neither will she.” I got on the serious bandwagon, to show I had been kidding, but I think an extra glob of my cum spat into Mom’s cunt at the notion of impregnating one or both of my semi-slaves.

Nell came into the room eventually. “What is he, a dog? Can’t get his knot out of your twat, Mom?”

We ignored her to the extent of not responding, but it was finally time to uncouple. “That was wonderful.” I said sheepishly.

“All in good fun, Craig.”

She and I used opposite ends of the throw to wipe our mess.

Nell rolled her eyes and flounced back to her room. “You owe me, Big Bro - 27 minutes plus some seconds.” That’s what she’d come out for.

To say I lost ten bucks but won the war would be accurate but inconsequential. All I cared about was, Nell had called me “Big Brother” in front of our mother.

“Is that some code?” Mom eyed me? “Not that I care anymore.” She was dressing. “But I’m going to track Nelda’s ovulation and decree blackout days.”

“Sis will be eager to do that, and I’ll be grateful.” I said earnestly.

“And take care not to bruise her frequently, it’s a cancer risk I hear.”

I hadn’t heard that, but I took the warning to heart. After dressing, Mother and I started dinner.

Dinner conversation was mild. It ended when Nell called me “Big Brother” again, after we had eaten. I stood up and told her to clear the table and clean everything, kitchen included. I invited Mom to play a video game while her daughter performed as instructed. Mom didn’t so much as raise an eyebrow - about Nell, but she’s not much of a gamer. She does enjoy first person exploration games with low violence.

When Nell appeared in the living room to tell us she was finished, I got up and took her to her bedroom. I wanted vengeance for losing our bet! “Goodnight, Mom.”

Mom didn’t have to remind me about my fertile sperm, but she did. “Don’t-”

“Nell is on the pill.” I reminded my concerned parent and followed my big-little sister.

“How many times did you nut today?” Nell sounded a little jealous, but she didn’t want to be left in a lurch for a climax. She was holding her bedroom door open. She closed it behind us.

“Three, but here’s your final test, Slave. I’ve spunked more often than that, in a day.” I referred to the good-old-days of when I spanked it to ShirleyThreeCunt videos. Those were weak affairs. I would gladly trade their quantity for quality. Sex with Mom had been intense! Each time, I wondered if I could get it up again, but I put the onus on my randy sister. “What will you do to make sure my next nut fills your twat?”

“Whatever I have to.” There was a hint frustration. Then she looked down, frowning. “Big Brother, what do you want?” Her change from defiance to submission tugged powerfully at my fantasy.

“I want you to finger yourself inside your panties. Watching you will keep me from being bored while I figure out how far to push you.

“All the way - short of bloodshed.” She promised, reaching into her shorts.

“Ick.” I took her at her word. I love my sister more than most siblings do, because we had the perfect balance of fight and fun. This was none of those. Nell expected me to feign complete lack of sympathy while having her obey and withstand my wishes until I didn’t need her anymore.

I held all the cards as she masturbated in her pants and waited for my dick to get hard. Nell is smart though, smarter than me. She had a secret weapon. “Tell you what, Big Brother. I’ll be your permanent slave.”

Her eyes narrowed. If she was faking being serious, she was doing a great job of it. My dick was interested. “Don’t say that unless you mean it.”

“I’ve been considering this for a while.” She pulled her hand out of her pants and licked her fingers. “It started when you and Mom convinced me to admit that I crave big dick - yours specifically because you’re not just convenient, you’re safe. I want to have your cock in me often, as often as you like - I totally confess it. The bigger reason is, I experienced something out of my world, when you destroyed my ass. It’s still sore from days ago. There wasn’t anything fun or good about it, but it was transcendent. There might be a drug alternative, but trusting you to respect our safe word is a wiser bet.”

Whoa, that was a lot to hear. My big sister had reached a decision to surrender herself full-time to my sexual whims - because she, A: trusted me, B: craved my dick, and C: wanted to explore her masochistic domain.

My dick was rising faster than a thermometer inserted into an orifice. “I don’t think you’re faking, Nell, but maybe you’re fooling yourself?” The presence of big cock, for her, was a clear bias to her thought train.

“Not much. I’m pretty sure.” She saw what was happening in the crotch of my trousers and stepped closer. Her hands fiddled with the clasp. “What do you say, Big Bro? This cunt will be yours, if you just accept it.”

“You’re cock crazy.” I challenged her with the extreme impression.

“I only get crazy when you’re fucking me with this bad boy. She unzipped my trousers and reached into my boxers. Her hands felt warmer than usual. “Yeah, you’ll nut before midnight.”

“You know this is the worst time to be negotiating about enslaving yourself.”

“Just a trial balloon.” She hefted my inflating meat. “Let’s deal with this real balloon for now.”

“Maybe you’re not crazy yet, Bitch Sis, but corny? Hells yeah you are!” I pulled her face to mine and offered my tongue to hers.

We wrestled this way for a few seconds before our hands roamed, pulling clothes away. Separating, her eyes burned. “Don’t you dare make love to me. I need a hard fucking.” She remembered how I worried after whipping her ass and took it slow and easy. Maybe I would do that again someday, but our minds were in sync. I literally threw her on her bed and leaped!

My body crashed into hers, the bed bending and groaning beneath us. I quickly fitted my semi-hard cock into her wet cunt and drove eagerly in and out. “You hot bitch!” I grabbed her wrists and pulled them above her head. “Keep those locked together!” I bit her left nipple hard! She yelped appropriately. Then I was raking my fingernails ups and down her sides as I plugged my fully hard prick into her weeping slot. Her body wriggled from the half tickle, half scrape. I left nail trails and I sucked hickies on her titties. We groaned and panted.

“Ah! You’re so big!” Her eyes rolled up into her head. She gasped from each of my thrusts!

I slapped her face and pulled out. “Turn over, like the bitch dog you are.”

She spun and raised up on her hands and knees. I socketed my dick back in and smacked her ass with my crotch. I grabbed her hips for balance while fucking her vigorously from behind. She spread her legs and clung to pillows as she soared to the heaven of big cock.

My belly patted her ass regularly. My balls swung back and forth more wildly as I increased pace and lunged cock rapidly in and out. I huffed and puffed loudly. Sweat sprouted on my chest and forehead. My prick shone brightly for the second I bared it to the light. Nell’s cunt was a wellspring of fuck juice.

“Fuck me, fuck me, fuck me, oh, yes,” she muttered. She gazed ahead in a daze not really seeing anything. Her cunt lips wrapped tightly around my pistoning shaft.

My hands went to her asscheeks, pressing down on them, prying them apart. My hips pumped madly, driving fat prick in and out of her so fast that my greasy fuck pole was a blur. I was growling, thrilled to have no limits to my lust. My cock seemed to keep expanding inside her cunt.

“It’s swelling, expanding, growing harder by the second!” She exclaimed. “I swear your fucking me with a Hoberman elipsis!” The reference was lost on me. I found out later she was referring to small toys that expanded to seemingly impossible volumes! I felt insulted, my dick was less of a grower and more of a show-er. It didn’t shrink to less than five inches even in cold water.

At the time, it didn’t matter, I was having a blast fucking my older sister who had offered herself as my full time slave! I cracked a hand against her sore ass! “You better not be lying, Bitch, or I’ll convince Mom to make you her chore slave!”

“I mean it, Big Brother! I’ll crawl and beg, in front of Daddy even!” Her promise couldn’t be trusted. But it was the last thing she said before wailing from a terrific orgasm!

Her mentioning Dad was impressive. My peaking dick couldn’t survive the image that formed in my head, of Nelda sucking on my cock while the rest of the family were eating breakfast!

My cock slammed into her one more time, cockhead spasming deep and abruptly exploding, belching out jets of jizz hot enough to scald her insides. The first sizzling jet blasted right through her battered cervix. That’s what she swore when her climax shot to a new level. I imagined my cum painting her pussy walls white and clogging the depths of her fuckhole, as I continued to surge my prick through her soaked depths.

Another spurt followed almost immediately, shooting so far inside she felt it catch in her chest. It was a thick, oily blast of cum, and it made her weak in the waist. In fact, her waist buckled, but the headboard and pillows kept her upright. Her heavy tits rolled and squished beneath her, flattened against raveled sheets and blankets.

More spunk jetted out. “Don’t you ever stop coming!?” Our fucking sounds grew wetter and gooier. My jism sloshed in her cunt and began to ooze out her pussy lips. My prick dribbled cum like syrup. Great heavy ropes of slime hung off the middle each time I pulled cock into the open.

“So much cum! So much!” she muttered. Warm and sticky wetness seeped down her thighs, and soaked into the bedclothes.

I pumped out still more cum, lobbing it deep into her cunt with every lunge.

“Now I know why porn talks about quarts and quarts!” She groaned.

My asscheeks flexed again and again as I drove prick to the hilt in her clogged and oozing cunt. And each time, a thick jet of flux sprang from my cock tip and splattered her insides.

“When does it end!?”

I didn’t need to be reminded that I had ejaculated three big loads earlier on this crazy day!

But soon the deluge drained out. I spanked cock into her for several more seconds, but the beast had stopped spurting. I was just stirring jism already inside, until my cock softened. My breathing regained its regular rhythm.