Last Night Fitting: His Stepsister's Confession

The house was too quiet with Mom and Dad gone for the weekend, every floorboard under my bare feet sounding like a confession I wasn’t ready to make. I stood in front of the full-length mirror in the sewing room wearing nothing but a pair of black lace panties and the half-zipped bridesmaid dress Ryan had been altering for me all week. The thing was scandalous—deep V in front, completely backless, the satin so thin it clung to my nipples like a second skin. I was twenty-two. He was twenty-eight. My stepbrother. And I had asked him, specifically him, to do the final fitting because I needed his hands on me more than I needed the hem straight.

Ryan knelt behind me with a mouthful of pins, the warm brush of his breath against the bare small of my back making my thighs press together. I watched him in the mirror: dark hair falling over his forehead, concentration tightening that stupidly handsome jaw. Our parents had married when I was nineteen. Three years of shared holidays, stolen glances across the dinner table, the way he’d look away whenever I came downstairs in a towel. I had been wet for him since the first Thanksgiving he spent under this roof.

“Hold still, Lila,” he murmured, fingers sliding along the curve of my hip to pin the fabric. “You’re fidgeting.”

“I can’t.” My voice came out thin. Confessional. I forced myself to meet his eyes in the glass. “I’ve fantasized about this exact thing since the day they got married. You, on your knees. Me, half naked. Pretending it’s just about the dress when it’s never been about the dress.”

His hands went still. A pin glinted between his fingers. The air thickened until I could taste it.

I kept going because if I stopped I would never start again. “I get wet every single time you look at me. In the kitchen. In the hallway. When you hug me goodnight and your chest is hard against my tits. I’ve touched myself thinking about you more nights than I can count—fingers buried in my cunt, whispering your name into my pillow so no one hears. I come so hard it hurts, Ryan. And it’s always you.”

Something in him snapped audibly, like a seam giving way. He stood in one fluid motion, the pins scattering to the carpet. His hands came up and cupped my face, thumbs stroking my cheekbones like he was afraid I might vanish. His eyes were dark, blown wide.

“Jesus Christ, Lila.” His forehead pressed to mine. “I’ve wanted this for years. Wanted to bend you over every surface in this fucking house. You’re my stepsister and I’ve jacked off to the thought of ruining you since you moved in. Tell me to stop and I will. Tell me you mean it.”

“I mean it.” I grabbed the front of his shirt. “Don’t stop. Please don’t stop.”

The kiss landed hungry and open-mouthed, no gentleness left in either of us. His tongue pushed past my lips and I moaned into it, tasting mint and heat and three years of denial finally cracking open. I fisted his hair. He shoved the dress down my arms so it pooled at my waist, bare breasts crushed against his chest, nipples dragging over cotton. We kissed like we were starving—teeth, spit, desperate little sounds. My hands found his belt. His found my ass, squeezing hard enough to bruise.

I dropped to my knees before he could finish undoing his pants. The carpet burned my skin. I freed his cock—thick, already leaking, the head flushed dark—and looked up at him the way I’d practiced in every fantasy. “I’ve dreamed about choking on this,” I whispered, and then I did.

I took him deep on the first slide, tongue flat, spit flooding my mouth until it ran down my chin and onto my tits. He groaned, a raw broken sound, and tangled both hands in my hair. I bobbed sloppy and worshipful, gagging deliberately so he’d feel the flutter of my throat, eyes watering and locked on his face the whole time. I wanted him to see exactly how filthy his little stepsister could be. I cupped his balls, massaged them while I hollowed my cheeks and sucked harder, letting him fuck my mouth in short, greedy thrusts. Drool soaked the ruined dress still bunched around my hips. When I pulled off to breathe, strings of spit connected my swollen lips to his cock.

“Fuck—Lila—”

He hauled me up, spun me, and bent me over the sewing table hard enough that scissors and thread clattered to the floor. Fabric ripped as he yanked the dress up around my waist. My panties were shoved aside; two thick fingers shoved into my soaked cunt without warning and I cried out, pushing back onto them.

“So fucking wet,” he growled. “All this for your stepbrother.”

“Yes—yes, only for you—”

He lined up and drove into me in one brutal stroke. The stretch burned perfect. I clawed at the table edge while he bottomed out and stayed there, grinding, letting me feel every inch. Then he started fucking me properly—deep, possessive, hips slamming so the table legs scraped across the floor. Each thrust punched a moan out of me. He reached around, found my clit, and rubbed filthy circles while he railed me from behind.

“You’ve been walking around this house dripping for me,” he gritted against my ear. “My stepsister’s tight little cunt gripping my cock like it was made for it.”

“It was—oh God, Ryan, harder—”

He pulled out only long enough to flip me onto my back on the table, shoving my thighs wide and pinning my knees to my chest. The angle let him sink even deeper. He pounded into me without mercy, the wet slap of skin on skin obscenely loud in the quiet house. I watched his cock disappear into me over and over, shiny with my cream, and the sight alone nearly finished me. My tits bounced with every thrust. He leaned down and sucked a nipple hard, teeth scraping, and I shattered.

I came screaming his name, cunt clamping down in hard pulses, juices squirting around his cock and soaking the table. He fucked me through it, relentless, chasing his own end until he yanked free with a curse. Thick ropes of cum painted my tits—hot stripes across my nipples, pooling in the valley between them, dripping toward my throat. I lay there gasping, legs still splayed, covered in him.

Breathless and glowing, I dragged two fingers through the mess and smeared his cum across my skin like lotion, pushing some between my lips so I could taste us. I looked up at my stepbrother with half-lidded eyes and whispered, voice ruined, “This is only the beginning of our secret. You’re going to fuck your stepsister in every room of this house before they get home.”

He hauled me upright, peeled the destroyed dress the rest of the way off, and we left it in a sticky heap on the floor. Upstairs in my bedroom we barely made it to the mattress—his mouth on my cunt, my nails down his back, me riding him reverse so he could watch his cock stretch me open again. We spent the rest of the night cataloguing every filthy thing we’d denied ourselves: him coming on my tongue, me begging him to breed my pussy just to feel it drip out, the two of us rutting like animals while the house stayed empty and complicit.

By dawn my sheets were ruined and my voice was gone from screaming. I rolled onto my stomach, ass still up, and reached back to spread myself open for him one more time.

“Fill your stepsister’s used cunt again, Ryan. Paint my insides white and make me drip down my thighs when I walk tomorrow.”