I pulled the black lace panties up my thighs and let them snap against my ass. My cock was already half-hard, pushing the front out in a wet spot from the precum I'd leaked while shaving my legs. The matching bra came next, padded with silicone tits that gave me a decent handful on each side. I tucked my balls back and adjusted until the panties cradled everything tight. Then the garter belt and sheer stockings. I stepped into the red heels and checked the mirror. I looked like a cheap slut ready to be used, and that was exactly the point.
Mark walked in without knocking. He didn't say hello. He just looked me over, grinned, and pulled the rope from his bag. "Hands behind your back," he ordered. His voice was low and flat, the way it got when he was already hard.
I turned and crossed my wrists. He looped the rope tight, cinching until the fibers bit into my skin. Every knot he added pulled my shoulders back and forced my chest out. The fake tits sat high and obvious. He ran a hand down my front, squeezed my cock through the lace, and laughed when it twitched.
"Look at you, dripping already," he said. He hooked a finger under the panties and pulled them aside just enough to free my balls. Then he tied another length of rope around my waist, ran it down between my cheeks, and pulled it snug against my hole. The pressure made me grunt. He tied it off so every movement would drag that rope over my entrance.
Mark pushed me onto the bed face-down. My arms were trapped under me, useless. He spread my legs and tied each ankle to a bedpost, leaving me open and arched. The heels made my calves burn. He stepped back to admire his work, then grabbed the bottle of lube.
He didn't warm it up. Cold slick hit my hole and he shoved two fingers straight in. I groaned into the mattress. He finger-fucked me hard and fast, scissoring to stretch me while the rope across my crack kept constant pressure. Every thrust pushed my cock against the wet lace. I was leaking steadily now, a dark patch spreading on the front of the panties.
"These are coming off," he said. He yanked the panties down to my thighs, leaving them stretched between my spread legs. My cock sprang free, red and leaking. He wrapped a hand around it and stroked once, twice, then let go. "Not yet."
He climbed onto the bed still dressed. I heard his zipper. His cock slapped against my ass, hot and thick. He rubbed the head up and down my crack, smearing lube and precum over the rope. Then he pulled the rope aside and pressed in.
The stretch burned. He didn't wait for me to adjust. He sank in deep with one long push, bottoming out until his hips met my cheeks. I gasped and tried to push back, but the ankle ropes held me still. He started fucking me in short, brutal strokes, each one driving the air out of my lungs. The fake tits jiggled with every thrust. The bra straps dug into my shoulders.
Mark reached under me and grabbed my cock again. He jerked it in time with his hips, rough and fast. "You look like a fucking whore in that outfit," he growled. "Stockings and heels while I wreck your ass. Bet you'd let anyone do this to you."
I couldn't answer. I was too busy moaning. The rope across my hole rubbed every time he pulled out, adding friction that made my head spin.

My cock was slick with lube and my own mess. He twisted his wrist on the upstroke and I nearly came right there.
He pulled out suddenly. I whined at the emptiness. He flipped me onto my back, the ropes on my ankles twisting tighter. My legs were spread wide now, panties still around my thighs like a slutty belt. He straddled my chest and fed his cock into my mouth. I sucked greedily, tasting lube and myself on him. He fucked my throat in short thrusts while his hand went back to my cock.
When he was close he pulled out and moved down again. This time he shoved back into my ass in one motion. He leaned over me, one hand braced on the bed, the other still stroking my cock. His face was inches from mine. "Come on my cock," he ordered.
I came hard. Cum shot up my stomach and chest, some hitting the underside of the bra. My ass clenched around him. Mark groaned and kept fucking through it, using the tight grip until he buried himself deep and unloaded. I felt every pulse, hot and thick inside me.
He stayed there for a minute, breathing hard. Then he pulled out slow. Cum leaked out around his cock and down my crack. He untied my ankles first, then my wrists. The rope marks were already red and deep. I lay there catching my breath while he wiped me down with a towel.
Later, after we showered, he helped me out of the bra and stockings. The panties were ruined, soaked and stretched. He kept them anyway.
"Next time," he said, "we're adding a gag and a blindfold."
I smiled. My ass was sore, my wrists ached, and I already wanted it again.