Step Secrets: My Hot Sister Craves a Creampie

The tension had been building between us for weeks, ever since that accidental brush in the hallway. My stepdad's new wife brought her along on the family vacation, thinking we'd bond like real siblings. She was right, but not in the way anyone expected. Late at night, with the thin walls of the cabin separating our rooms, I heard her muffled moans through the drywall, and I knew she was thinking of me.

It started innocently enough—a shared bottle of whiskey stolen from the kitchen while our parents slept. She admitted she'd never been with a guy who actually respected her, who looked at her like she was the only woman in the world. The way her words trailed off, the way her fingers traced the rim of her glass, sent a jolt of electricity straight to my cock.

Now we're tangled in her sheets, the moonlight casting shadows across her flawless skin. She's riding me hard, her tight pussy gripping every inch as she begs me to go deeper. I can see the desperation in her eyes, the same forbidden hunger that's been consuming me since she stepped off the plane. She whispers in my ear, telling me she's not on the pill, that she wants to feel every drop. Her hips grind against mine as I feel the pressure building, my balls tightening as she cries out that she's about to cum.

I flip her onto her back, slamming into her with primal urgency. She wraps her legs around my waist, pulling me in deeper, screaming my name as she climaxes. That's when I lose all control, burying my cock as deep as it can go and erupting inside her, flooding her womb with my hot seed. She kisses me passionately, smiling devilishly, knowing we've just crossed a line we can never uncross.