I waited behind the door when I heard her coming up the stairs to the flat and heard her key scrape in the lock. My hard-on was jutting against my trouser front as the door swung inwards, and I moved smoothly behind her unsuspecting body and, before she sensed my presence, reached round to cover her mouth with my hand. Her body went rigid and she started to squirm but I dug two fingers into the small of her back and whispered, "This is a knife. Don't move."
Her body slumped in my arms and I pushed her roughly in the direction of the living room. "Not a sound, or you're dead, " I whispered menacingly. She offered no further resistance and I shoved her face down into the sofa cushions, her backside sticking in the air.
"OK. Do as I say and all you'll get is a good time, " I whispered. "Fuck about with me, and I'll work you over, then do what I'm going to do anyway. Understand?" She nodded dumbly.
"Good. Bend over the arm of the sofa. Don't look at me, or I'll cut you. Take your hair tie off" She complied, and her long brown hair tumbled down and over her shoulders.
"Unhook your bra, but leave it on." She reached round, breathing heavily, and undid the clasp. Her heavy tits moved slightly in the loosened garment, but stayed within.
Now picture this. The woman has not seen my face at any stage in the process. She is bent over the arm of a leather sofa, her bra undone and her hair flowing everywhere. And she is obeying my every command. Time to move on.....
"Loosen the top of your trousers." She complied, and undid the first couple of buttons on her jeans. I could smell something tantalisingly womanly now, the smell of a woman on heat. My cock was aching, but I knew this time would have to last longer than my instinct demanded. Moments like this are rare indeed.
"Slip a finger inside your pants. Do what you want with it, " was my next instruction.