Step Sis Traps Me In Panties Until I Promise To Submit

It started as another boring Saturday at home, but when Dad and my stepmom left for their overnight getaway, my gorgeous step-sister Molly saw her opportunity. She'd been testing boundaries all week—walking around in tiny shorts, forgetting to close the bathroom door, sitting just a little too close while we binged shows. This time, she trapped me in her room, locked the door, and made it clear she wasn't letting me out until I admitted what she already knew. My eyes kept betraying me, darting down to the skimpy lace thong peeking out from the waistband of her low-rise sweatpants.

She caught me staring, of course. That smug little smile spread across her face as she slowly peeled off her oversized hoodie to reveal she was barely wearing anything underneath. The way she straddled my lap, pressing her warm, bare thighs against mine, made it impossible to hide the evidence of just how much I wanted her. She giggled when she felt my rock-hard length straining against my sweatpants, grinding down slowly just to watch my eyes roll back. "You know we shouldn't," I muttered, even as my hands found her hips.

"Says who?" she whispered back, biting her lip. She leaned in close enough that I could taste her sweet perfume on the air between us, whispering that she'd thought about this every night, touching herself while listening to me jerk off through the thin wall between our rooms. The taboo weight of the situation made everything more intense—the secret thrill of doing something so forbidden right under our parents' noses. I surrendered completely as she guided me onto her bed, stripping off those tiny shorts with practiced ease.

Watch as this step-sister takes total control, teasing her desperate step-brother past every point of resistance until neither of them can turn back.