My Busty Sister

Unleashed Passion

The house had gone quiet after midnight, but the tension in the air remained thick as smoke. Dad’s latest outburst earlier that evening had shaken everyone. Another investor pulling out, more threats of audits. Our family’s empire was cracking at the seams, and the pressure only made the forbidden fire between Sophia and me burn hotter. I lay in bed, shirtless, staring at the ceiling, my body still buzzing from the kiss we had shared the night before. Her taste, the weight of her breasts in my hands, the way she had ground against me. It was all I could think about.

The soft click of my door opening made my heart leap. Sophia stepped in, wearing nothing but a sheer white babydoll nightie that barely reached the tops of her thighs. The fabric was nearly transparent in the low light from the hallway, revealing the dark outlines of her full breasts and the curve of her hips. No panties. She closed the door and locked it with a quiet turn of the key.

“Alex,” she whispered, her voice trembling with need. “I can’t stay away anymore. Not after last night.”

She crossed the room in slow steps, her breasts swaying heavily with each movement. I sat up, my c**k already hardening at the sight of her. “Sophia… if we do this, there’s no going back.”

“I know.” She stopped right in front of me, so close I could feel the heat radiating from her body. “I don’t want to go back. I want you. All of you.”

I reached for her, pulling her onto the bed and into my lap. Our mouths crashed together in a hungry kiss, even deeper and more desperate than before. Her tongue danced with mine as my hands roamed over her curves. I cupped her ass, squeezing the soft, plump flesh, then slid upward to caress her breasts through the thin nightie. They filled my hands perfectly, heavy and warm.

God, she feels incredible.

I broke the kiss to tug the nightie over her head, exposing her completely. Sophia’s breasts spilled free, full and round with stiff pink n*****s begging for attention. Her body was a masterpiece, narrow waist flaring into wide hips, smooth skin glowing in the moonlight filtering through the curtains.

“You’re perfect,” I murmured, leaning in to capture one n****e in my mouth. I sucked gently at first, then harder, swirling my tongue around the sensitive peak. Sophia moaned softly, arching her back and pressing more of her breast into my mouth. Her fingers tangled in my hair, holding me there as I lavished attention on first one side, then the other.

“Alex… yes, just like that,” she breathed, her voice husky with desire.

My hand slipped between her thighs. She was already soaking wet, her folds slick and hot. I stroked her slowly, teasing her c**t with my thumb while two fingers explored her entrance. Sophia gasped and rocked against my hand, her wetness coating my fingers. The erotic sounds she made drove me wild.

I laid her back on the bed and stripped off my boxers, my thick c**k springing free, hard and throbbing for her. Her eyes widened with lust as she stared at it, biting her lip. She reached out and wrapped her soft hand around me, stroking slowly from base to tip.

“I want this inside me,” she whispered, her eyes meeting mine. “I’ve wanted it for days.”

I positioned myself between her spread legs, rubbing the head of my c**k along her slippery folds. She was so warm, so ready. With a deep breath, I pushed forward, sliding into her tight heat inch by inch. Sophia’s mouth fell open in a silent cry of pleasure as I stretched her. She was incredibly tight, her inner walls gripping me like velvet.

“f**k, Soph… you feel so good,” I groaned, burying myself to the hilt. We stayed like that for a moment, joined completely, brother and sister in the most forbidden way.

Then I began to move. Slow, deep thrusts at first, savoring every sensation. Her breasts bounced with each stroke, hypnotic and beautiful. I leaned down to kiss her, swallowing her moans as I picked up the pace. The wet sounds of our bodies meeting filled the room, mixing with our ragged breathing.

Sophia wrapped her legs around my waist, pulling me deeper. “Harder, Alex. Please… I need all of you.”

I gave her what she wanted. My hips snapped forward faster, driving into her with powerful strokes. The bed creaked softly beneath us. I reached between us to rub her c**t while I f****d her, feeling her body tense and tremble. Her full breasts jiggled with every thrust, her n*****s grazing my chest.

She was losing control, her nails digging into my back. “I’m so close… don’t stop!”

I thrust harder, deeper, the pleasure building to an unbearable peak. Sophia came first, her p***y clenching rhythmically around my c**k as waves of ecstasy washed over her. She buried her face in my neck to muffle her cry, her entire body shaking.

The feeling of her coming undone pushed me over the edge. With a deep groan, I buried myself as far as I could and released inside her, pulsing hot and thick. The orgasm seemed to last forever, intense and mind-numbing.

We stayed locked together afterward, panting and sweaty. I rolled to the side, pulling her against my chest. Her head rested over my heart as I stroked her hair and the curve of her back.

“That was… incredible,” she whispered, pressing a soft kiss to my collarbone. “I’ve never felt anything like that.”

“Me neither.” I held her tighter. The guilt tried to creep in, but the warmth of her body chased it away for now. “But Soph, the family… if anyone finds out…”

She looked up at me, her eyes shining. “I know the risks. Dad’s business is hanging by a thread. One scandal could destroy everything. But this feels right. Being with you like this… it makes the rest bearable.”

We talked quietly for a while, her fingers tracing patterns on my chest. The wealthy problems that had forced us back together now felt distant compared to the intimacy we had just shared. Yet they loomed, a constant shadow.

Later, she climbed on top of me for a second round. This time she took control, sinking down onto my c**k with a long, satisfied moan. I watched, mesmerized, as she rode me slowly, her heavy breasts bouncing with every roll of her hips. I gripped her waist, guiding her movements, then reached up to squeeze and play with her t**s.

The sight of my sister lost in pleasure, her head thrown back and lips parted, was the most erotic thing I had ever seen. We came together this time, her body milking every drop from me as she shuddered through another powerful orgasm.

Afterward, she curled up beside me again, her naked body pressed flush against mine. “I don’t regret it,” she said softly. “Not one second.”

“Neither do I.” I kissed the top of her head, but deep down I knew the line we had crossed was permanent. The slow burn had become an inferno, and there was no putting it out.

As sleep finally claimed us, the distant sound of Dad’s study door closing reminded us both that the real world waited just outside these walls. Financial ruin, family secrets, and now our own dangerous passion. One weak moment had shattered everything… and we both wanted more.