I added a second finger right away, scissoring them inside him carefully, feeling the muscles clench and then relax around the pressure, his ass opening up more with each twist of my wrist, while his cock throbbed visibly below, veins standing out along the length.

Leaning over his back, my free hand trailing down his spine to feel the sweat starting to bead there, I whispered right in his ear, my breath hot against his skin.

“You’re such a slut for this already, aren’t you, Jake, pushing back on your step-sis’s fingers like you can’t get enough, begging without even saying the words yet.”

He shuddered hard under me, nodding...