The footsteps stopped right outside our door. My heart slammed against my ribs so hard I thought it might burst. Marcus’s thick cock was still buried deep inside my cum-drenched pussy, twitching as it hardened again. His hand stayed clamped over my mouth, fingers digging into my cheeks. Hot cum leaked steadily from where we were joined, trickling down my thighs onto the ruined sheets.

“Don’t you fucking dare make a sound, you filthy stepsister slut,” he breathed against my ear, voice barely audible but dripping with dark arousal. “If someone opens that door, they’re gonna see you impaled on your big brother’s cock like a nasty cum rag.”

I...