She finally looked up at me, her eyes dark and heated, full of that mix of shame and desire, her lower lip caught between her teeth as she let out a shaky breath.
“Okay, fine, yeah, I was thinking about you.
It’s wrong, we’re step-siblings, living under the same roof, but sometimes when I’m alone, the thoughts just come, and I can’t stop them.
So what now?
You gonna use this against me, threaten to show it to someone if I don’t do what you want?”
I grinned, feeling the rush of control flood through me, my cock fully hard now, straining against my zipper as I imagined all the...