Stepbro Sees Stepsister’s Curves Under Thin Satin Gown

It was 2 AM when I finally slipped through the front door, my head still buzzing from a bad night out. I never expected to find my stepsister still awake. She was curled up on the couch in a thin, pearl-white satin nightgown that clung to every curve of her body like a second skin. The way the fabric caught the glow of the TV screen, hugging her breasts and flowing over her thighs, made my throat go dry. She looked up at me with those sleepy, half-lidded eyes and smiled, pulling her knees to her chest in a way that made the hem of her gown ride dangerously high.

I should have walked straight to my room. I didn't. Her voice was low and teasing when she asked if I was going to sit with her. My body answered before my brain could object. Settling beside her on the couch, I could smell her perfume, warm vanilla and something wild, and feel the heat radiating from her bare legs. She shifted closer, her fingers tracing lazy circles on the armrest, so close to my thigh that every touch felt like a dare.

The air thickened between us, charged with unspoken tension. She giggled at how tense I was and whispered, "Relax, we're just watching a movie." But the way her hand found its way to my knee said otherwise. This was no innocent late-night bonding. This was my beautiful, forbidden stepsister testing just how far she could push me before I snapped. And God help me, I was about to break every family rule to find out where it led.