The silence that settled over the study after Sophia’s departure didn't last long. Less than an hour later, I heard the sound of Mom's car pulling into the garage. My body was still hot, the scent of sex with my sister clung to the room, and the top of the wooden desk still bore the damp patches we had left behind. I was in a total panic. The psychological pressure of sleeping with my mother was already massive, but now, having dragged my own sister into the loop under blackmail was too much for my head to handle.
I wasn't going to be able to keep it a secret. As I heard Ana’s footsteps coming up the stairs, my stomach churned.
She walked into the study with a light smile, that complicit look we had developed over the past few weeks, but the moment she caught sight of my pale face, her smile vanished.
"Lucas? What happened, my love? You're white as a sheet..." she asked, dropping her purse onto a chair and rushing over to me.
"Mom... the gig is up," I blurted out, my hands trembling. "Sophia. She found out. She saw us weeks ago when her car broke down... she saw you on all fours on my bed."
Ana froze. The color instantly drained from her face, and her brown eyes widened in pure terror.
"What? Oh my God... no, it can't be... she’s going to ruin us, Lucas! She’ll tell the family, I’ll lose my job..."
"No, Mom, listen!" I interrupted, gripping her cold hands. "She’s not going to tell anyone. But she cornered me in here just a moment ago. She demanded a price for her silence."
"What price? Money?" Ana asked, her voice shaking.
"No... she wanted the same thing you have. She made me fuck her right here, on top of this desk, or she was going to expose everything. I just got done eating Sophia out and putting it in her, Mom."
The shock on Ana's face lasted for only a few seconds before being completely overwritten by a wave of blind, roaring fury. Her cheeks flushed a deep crimson, her fists clenched, and the submissive demeanor she usually displayed in bed vanished entirely, replaced by a deeply outraged mother and woman.
"That... that entitled little brat! How dare she use this against us? How dare she lay her hands on my man?!" Ana snarled, her voice rising in pitch as she spun on her heels. "I am putting an end to this right now!"
I tried to hold her back, but Ana stormed out of the study like a hurricane, marching down the hallway toward Sophia’s room. She shoved the door open with force, slamming it against the wall. Sophia was lying on her bed, casually reading a book, but she looked up with a cynical smirk when she saw us.
"Where are your manners, Mom?" Sophia taunted, slowly closing the book.
"Shut your mouth, Sophia!" Ana shrieked, standing at the edge of the bed, shaking with rage. "Have you lost your mind? Blackmailing your own brother? Using our secret just to get into bed with him? You are an opportunistic little slut!"
Sophia didn't flinch. On the contrary, she sat up on the bed, crossing her arms with the same predatory stance from earlier.
"Oh, please, Mommy, spare me your fake moralism," Sophia shot back, her voice calm but dripping with venom. "You're the one who started fucking your own son on the kitchen counter. I spent weeks enduring your groans all over this house. You were taking it from him every single day while I was dealing with a drought. I just took what’s rightfully mine. Lucas is too much of a man to be tied down just to you."
"He is mine!" Ana took a step forward, her heavy breasts heaving with her ragged breathing. "I'm the one who taught him! I'm the one who surrendered first! You had no right to come between us!"
The argument raged viciously for long minutes, with accusations from both sides echoing off the walls of the spacious house. I watched it all from the doorway, breaking into a cold sweat, watching the two most important women in my life fighting over my dick as if it were a trophy. Eventually, exhaustion and the stark reality of the situation began to set in. They both knew that neither could yield without destroying the family completely.
Sophia let out a short chuckle through her nose, breaking the peak of the fight.
"You know what? We're getting nowhere arguing like this," my sister said, looking from Ana to me. "Nobody is telling anyone anything. The secret stays locked inside this house. But Lucas belongs to both of us now. Let's make a deal... half and half."
Ana narrowed her eyes, her shoulders still tense, but her pragmatic, mature woman's mind began to weigh the proposal.
"What do you mean, half?" Ana asked, her voice sharp.
"Different days," I proposed, stepping into the room to end the conflict before it escalated into violence. "I can't handle both of you at the exact same time without going crazy. One day is yours, Mom. The next is Sophia's. And neither interferes on the other's day."
Ana looked at me, then at Sophia. Her pride was wounded, but her desire not to lose what we had built won out.
"Fine," Ana begrudgingly conceded, her voice tight. "Mondays, Wednesdays, and Fridays, he's mine. Tuesdays, Thursdays, and Saturdays, he's yours. And on Sundays, he rests."
"Deal," Sophia smiled, stepping off the bed and walking toward the door, brushing past us with a slow, deliberate sway of her hips. "But the agreement only says we can't interfere... it doesn't say we aren't allowed to watch."
Over the following weeks, the tension inside that large house shifted dramatically. The fear of being caught had vanished, replaced by a cold war of pure sexual provocation between mother and daughter. The rule of separate days was strictly respected, but they quickly found loopholes to torment and arouse one another, turning the house into a theater of voyeurism.
The following Monday was Mom’s day. I was in the kitchen preparing a snack in the afternoon when Ana walked in wearing nothing but a kitchen apron tied around her waist, completely naked underneath. She knew perfectly well that Sophia was in the living room watching TV, with a direct line of sight into the open-concept kitchen.
Without a single word, Ana hopped onto the granite countertop, spread her thick thighs wide toward me, and gripped the back of my neck, pulling me into a loud, wet kiss.
"Fuck me right here, Lucas... right now," she commanded in a voice intentionally loud enough to echo through the house.
I freed my dick and penetrated her right then and there. Ana began to moan scandalously, throwing her head back and clawing at my shoulders. Out of the corner of my eye, I saw Sophia in the living room, craning her neck, her eyes glued to the scene, biting her own lower lip with an envy you could almost breathe in. Ana looked over my shoulder directly at her daughter, smiling triumphantly as I buried my shaft deep into her soaking wet walls.
The retaliation came on Tuesday, Sophia’s day.
Mom was sitting in the armchair in the living room, reading over hospital reports, when Sophia walked downstairs wearing nothing but a short t-shirt. She marched right to the center of the room, directly in front of the TV and right beside where Ana was sitting. Sophia looked at me, sat flat on the plush rug with her legs spread wide open, revealing she had no panties on, and began to masturbate while staring fixedly at me.
"Lucas... come here. It's time to pay my installment," Sophia said, her voice needy, but her eyes locked dead onto Ana.
I walked over to her under Mom’s glaring, furious eyes. I knelt down and began to drive fast, deep thrusts into Sophia right there on the rug. My sister held onto my arms, making a show of grinding her hips hard against me and screaming my name, vocalizing how my dick felt so much better than any man she had ever tasted. Ana tried to focus on her paperwork, but the sheets of paper were shaking in her hands; she was breathing heavily, watching her daughter get filled up by her own son, completely consumed by a toxic mix of jealousy and lust.
The power game had officially begun, and I was right at the center of it, consumed and worshipped by both women in the house.