She dropped to her knees the second the door clicked shut behind her. The concrete floor was cold against her bare skin, but that was the point. He wanted her uncomfortable. He wanted her waiting.
Hands behind your back, he said, voice low and rough. No greeting. No warm-up. Just orders.
She crossed her wrists and felt the leather cuffs snap on tight. The click of the lock made her cunt clench. He walked around her once, boots heavy on the floor, then grabbed a fistful of her hair and yanked her head back so she had to look up at him.
Open your mouth.
She did. He spit on her tongue, then shoved two fingers in and fucked her throat with them until she gagged. Spit ran down her chin onto her tits. He didnt wipe it away. He just laughed once, short and mean.

Tonight youre free use, slut. Anyone I say touches you, you thank them. Understand?
Yes, Sir.
He dragged her by the hair to the center of the room and bent her over the padded bench. Ankles spread and strapped wide, wrists clipped to the front so her ass was up and her face was down. The position already made her wet; she could feel it slicking her inner thighs. He noticed.
Look at that dripping cunt. Pathetic. Two fingers shoved inside her without warning, pumped hard twice, then pulled out. He wiped them on her ass cheek. You dont come until I say. Not once.
The first strike of the cane landed across both cheeks. She jerked and cried out. He gave her ten more, fast and vicious, until her ass was striped and burning. Then he stepped in close, unzipped, and shoved his cock straight into her pussy in one brutal thrust. No slow entry. Just full, deep, and punishing.
He fucked her like he hated her. Hard, slapping strokes that rocked the bench. Every time she tried to push back he slapped her already-welted ass and told her to stay still. When he was close he pulled out, walked around, and fed his cock into her open mouth.
Clean it.
She sucked him sloppy and desperate while he held her head and used her throat. He came down her gullet with a grunt, held her there until she swallowed every drop, then pulled out and left her dripping and empty.
He didnt untie her.
An hour later the door opened again. Another man. Same rules. She heard the zipper, felt rough hands spread her sore cheeks, and then a thicker cock pushed into her ass with nothing but spit. She screamed into the bench. He didnt care. He just gripped her hips and railed her until she was shaking and drooling.
When he finished he wiped his cock on her lower back and walked out. She stayed strapped down, cum leaking from both holes, ass and thighs marked.
He came back alone after that. Unstrapped her only to flip her onto her back, legs spread and tied again. This time he used the wand on her clit while he fingered her ruined pussy.
You want to come, dont you?
Yes, Sir. Please.
Beg louder.
She begged until her voice cracked. He edged her three times, bringing her right to the edge then yanking the toy away and slapping her swollen clit. When he finally let her come it was brutal. Her whole body seized, juices squirting around his fingers, and he kept the wand pressed hard through every aftershock until she was sobbing and trying to twist away.
He climbed on the bench, shoved back inside her pulsing cunt, and fucked her through the overstimulation until he filled her again. This time he stayed inside, grinding deep while he unlocked the cuffs.
Clean yourself up. Then get back on your knees. Were not done.
She slid off the bench on shaky legs, cum running down her thighs, ass and cunt aching, and dropped to her knees again like the good free-use slut she was. The night was still young. He had more friends to call. More holes to offer. And she would take every single one, exactly the way he wanted.