Ellie unlocked her front door and led Ben inside her small basement flat. This was only their second date, but he was already having an effect on her. She closed the door behind him with a firm, satisfying thud and led the way to the small lounge at the back of the flat.

There was only one sofa and that was covered in baskets of washing, some clean some not, but there were also large coloured cushions positioned on the floor. On the walls were photos of Ellie cycling, skiing and playing various other sports that required endurance. She always had been able to push herself to the physical limit and was hoping to again tonight.

"I didn't expect to have visitors."

Ellie smiled bashfully and gestured towards the floor cushions that were placed in front of a door leading out to the small garden. On the inside of the door was a heavy security grille, not uncommon for flats in this area. Hanging from the one of the bars on the grilled door was a pink, high security 'D' shaped bicycle lock with the key still in the hole. The lock was now hanging very close to Ben's neck.

"Sorry, it looks as though I chain people to that door, doesn't it," she smiled shyly.

"I'm sure they wouldn't object... providing the coffee's good."

"Oh the coffee's very good."

Ellie was now standing only inches away from him, with the black dress that he'd been discretely glancing at all evening almost touching his face. Sleeveless and tight at the top, swooping down to a slim waist and then curving out around her arched back to her pert butt and then long legs that the dress did little to hide. Beneath the dress her long legs were enclosed in sheer stockings, leading down to ankle high boots.

Ellie reached down and unlocked the bike lock.

"What are you doing?" he smiled.

"I take it you won't object then?"

Ben was mesmerised by her slim body with perfect pale skin and her scent that filled the air. She lifted her left thigh and rested it against the side of his head, sending a jolt through his body. He couldn't help but look up inside her dress. The stockings stopped just below her black panties revealing a section of bare thigh.

She lifted her left thigh further to give him a better view inside her dress, but by doing so she also shifted his head a few inches to the left. He felt the cold metal and heard the clinking of steel on steel as she positioned the lock around his neck. His overwhelmed senses were still playing catch up. It had all happened too quickly.

Ben was now mesmerised by the the frill around the hem of her tiny black panties, her slim pale fingers with their long perfectly shaped nails and the way they flicked the key around and pulled it out of the keyhole. She stepped away and he instinctively tried to follow only to find his neck now locked to the heavy barred security door.

"Cute," she purred, tossing the single silver key from one hand to the other.

"Hey, you've really locked this."

Ellie stepped forward and used her pointed ankle high boot to tap his erect cock that was showing through his chinos.

"I'll make the coffee then," she said as she blew him a kiss.

She put the key down on the kitchen bench and smiled to herself. The reason the bike lock was there in the first place was because she'd actually locked herself to the barred door. The bike lock had felt heavy around her neck and the notion of being trapped and totally unable to escape had excited her. Even though she'd had the key in her possession, it had given her a tingling sensation through her body. She had the same tingling feeling now.

Ellie returned with the coffee and handed one to Ben, before clearing some space on the sofa and sitting down. Her short dress had ridden up even further and Ben could see the back of her upper thighs resting on the cream sofa. He could also see the lacy black pattern at the top of her suspenders and the sheer stocking that then ran all the way down to her feet. Her long curvy red hair was now covering half of her face and she was watching him carefully from behind.

"How's the coffee?" she asked.

"Good."

Ellie's face broke into a smile. A deal was a deal.

"...but feel free to unlock this whenever you like," he added.

"I will..."

Ellie pulled her knees towards her so that her boots were now resting on the sofa. Her dress had ridden up even further and Ben had full view of her stocking and panties. She opened her knees a little wider to make sure that Ben could see her panties curve down between her legs and disappear under her butt.

"Are you supposed to look up a girl's dress?" she asked.

Ben tried to sit up straighter which made the heavy bike lock rattle.

"You really can't get out of that."

"So I see, and I assume you're not going to give me the key?"

"No," Ellie's eyes seemed to get even bigger as she shook her head.

"I guess I should really hide the key in my bedroom."

"Why not hide me in your bedroom?"

"Cute..."

Ben watched the long pantyhose covered legs smile and slink off with the only key that could release him.

Ben and the middle vertical bar of Ellie's security door were now intimately joined. He found that he could slide his neck down to the ground, but couldn't slide it up any higher due to an inconveniently placed horizontal cross bar. He was now on his feet, crouching down, assessing his situation.

"Still here?" Ellie asked as she returned.

"How long are you keeping me locked up?"

"How long do you want to stay locked up?"

"The key?"

"Hidden safely in my bedroom."

Ellie watched her date struggle pointlessly against the lock that he would never be able to remove from around his neck. His fingers were playing inanely with the empty keyhole and his body twisted discretely, trying to squeeze out.

"You know you can't get out of that don't you."

"Yeah, I see."

Ellie walked back and forth in her stockings, stepping over Ben's outstretched legs as she went. Her short black dress flicked back and forth and her shoulder length hair followed dutifully behind as she turned and walked back.

"Is it really so bad when a girl's in control?"

"No."

"Do you want me to unlock you?"

Ellie had pulled up her dress and was resting her crotch against his mouth as if to encourage him not to answer. Her stocking covered feet against played with his hard cock and his hands explored the back of her thighs

"Good, I'll leave you there then."

Ellie watched as he swallowed on his dry throat. He was as sexy and strong as he'd been in the restaurant and his blue shirt still gave her a glimpse of the fit body beneath; almost superhero like. His tanned chinos were still tight, but now she could look down on him and be assured of his undivided attention.

"I have you on a really short leash... bit cruel I guess."

Ben reached forward and tried to remove her panties. Ellie swiftly lifted one leg and rested her left knee dangerously close to Ben's throat. He removed his hands and held them up in surrender with Ellie's panties still very much in place.

"You're very forward for a guy chained to an immoveable object."

"I don't have much to lose."

"Why don't you undress first," she winked as her stocking clad foot played with the bulge between his legs.

"You first."

"Why? Because I'm a girl?"

"No."

"I wonder how many days you could survive chained to my door with me looking after you?"

Her words, mixed with the excited look in her eyes made the bike lock weigh even heavier around Ben's neck. He tried to sit up straighter and taller, but his movement were instantly cut short by the clatter of metal against metal.

"Which do you want more, the key or my naked body?"

Amused by the confusion swirling inside the male brain, she stepped closer, "Frisk me if you want... maybe you'll find the key."

Now a little intimidated by his seemingly sweet and innocent date, Ben slowly ran his hands up her legs and across the front of her panties. She enjoyed his touch for a few minutes and then crouched down to look at his beautiful bewildered eyes.

"Now, what if I took away your hands?"

Ellie ducked away into a nearby cupboard and pulled out a box of zip ties. To date she had only used them on herself, another little game, but now she could use them to much better effect. By the time she returned, Ben had already placed his wrists by his sides against the steel bars that formed the security door.

"Good boy. You want me to tie you up, don't you?" Ellie said as she crouched down, her lilting voice showing delight.

Ben smiled and kissed her on the lips for the first time. She almost seemed innocent again; big eyes open in amazement, enjoying the moment. Knowing that this was his last chance, he ran his hands over her body, unzipped her dress and unhooked her black bra.

Ellie stood up and let her bra and dress and fall from her body so that she was only wearing stockings and panties. She took hold of his first wrist, gently caressed it and then tightly zip tied it to the heavy steel bar. Seconds later Ben's other wrist was also secured helplessly by his side.

"You've just let some strange girl lock you up," Ellie whispered into his ear as she tightened the second zip tie, "and now she's going to fuck you all night."

Ellie smiled to herself as her forward language made even her jump. He was as sexy as hell, but obviously hadn't been with a girl like her before. She could have so much fun with him.

She stood up, lifted her dress and nuzzled the front of her panties gently against his mouth. His strong arms fought against the zip ties, but the simple strips of plastic were winning. She allowed him a few moments to kiss her and then crouched down again and stripped off his chinos and boxer shorts.

"I can do anything I like to you," she whispered into his ear.

She shook her long wavy red hair so that it half covered her face and then knelt down and positioned herself above his cock. Their faces were now almost touching; her elegant 'ski jump' nose, her wide lips, her big brown and green eyes, her knowing smile and her perfume that filled his world.

"You okay to do this?" she asked.

"Fuck yeah."

Ellie lifted herself up and gently positioned the tip of his cock against her waiting vagina. She slipped him inside her and wrapped her strong calves around his back and locked her feet together. She held tight to the barred door and worked her hips steadily into his body.

The first time was slow and steady and amazingly tender. Once they had both climaxed, Ellie remained sitting on his lap with her arms and legs wrapped around her prey as they came down from the natural high. She then picked up another zip tie that was lying on the floor and aimlessly looped it around his neck.

"Do you like necklaces Ben?" she breathed, taking one end between her thumb and forefinger and ratcheting it tighter.

"Ellie?"

She looked at him obstinately and pulled it a little tighter.

"Think you'll disobey me?"

Ben shook his head, focusing totally on her mysterious eyes.

"I also have a cable lock that tightens on a ratchet. Imagine that being pulled tight around your neck and me having the only key to release it."

"Fuck..." was all Ben could stutter.

"Imagine what I could make you do to me, to get that key."

Ben tried to move, but with his neck and wrists attached to the barred door and with the sexual aroused redhead sitting on his lap, there was little he could do. Even his temporarily limp cock was still deep inside her. His predicament seemed to excite her and she worked her hips back and forth to enjoy the pleasure.

Within seconds, Ben was hard again and Ellie's lips creased into a smile and her hips started to push harder. Her arms were entwined tightly around his neck and her tongue pushed into his mouth. Ben kissed her back, her wild red hair now engulfing them both.

After the fourth time, Ellie was buzzing, almost shaking. She unwrapped her legs and climbed unsteadily to her feet. Ben was still breathing hard. He had never experienced anything like it; his lips were stiff and his cock ached from overuse.

"Nice," she smiled giddily, still wobbling like a baby giraffe.

"You were amazing."

"Thanks... I'm going to take a bath."

She stopped and straightened her panties which she had pulled to one side to make love and which had now ridden up between her cheeks. "Oh, would you like me to release your hands?" she asked, her voice croaky from her exertions.

"No rush."

Ellie smiled. The sexy guy was starting to enjoy living under Ellie's law. She wouldn't offer again. He wanted to stay under 'her' control. Maybe she should lock him up even more? She stepped forward and tenderly stroked Ben's dark hair back out of his eyes. Much to Ellie's amazement, Ben was hard again and his body was fighting against the lock in an attempt to kiss her body.

"You'll have to be patient!"

With the look in his eyes telling her that she could do whatever she wanted to this guy, Ellie removed her stockings and suspender belt and then pulled off her black silk panties. She bunched them up and poked them into Ben's half open mouth.

"They'd better still be there when I come back," she ordered, tapping his lips with her forefinger.

As if to reinforce her message, Ellie tightened the zip tie around his neck a little further. It was still comfortably loose, but they both knew that it was within Ellie's power to make it so much tighter.

Ben watched the panty-less redhead walk away and then looked down at his embarrassingly erect cock. Fuck, he should have accepted her offer to free his hands. Now he had the mother of all erections and had no way to touch himself. He couldn't even call her to say he'd changed his mind. If her dirty underwear came out of his mouth he would be in a world of trouble. He sat helplessly listening to her fill a bath. He closed his eyes, relaxed and imagined her naked body in the warm water.

Her lover may have been chained up and waiting for her, but that certainly hadn't made Ellie rush her bath. The water was deep and she had lit the candles that lined the shelf. She gently stroked herself between her legs, the sensation was amplified by the water making goose bumps form on her skin. New ideas on how to restrain him, how to fuck him and how to kiss him were swirling around her mind.

Ellie returned to the lounge wearing clean cotton underwear and a short flowery negligee. She walked over to her chained up lover and pressed her bare inner thigh up against the side of his face as she stroked his hair. The toll she'd taken on his body and mind were evident. Red wrists and neck, a small cut to the side of his face and love bites on his neck. His eyes were red and slightly damp. He looked both ready to make love and ready to pass out. Without asking, she picked up some scissors and sliced through the zip ties that bound his hands and indicated that he had her permission to spit out her panties.

"You want to stay the night?" she asked as she sipped on a glass of water, "maybe we can make out again in the morning."

Ben nodded, his focus on her large glass of water and the fact that her underwear had sucked every last drop of moisture from his mouth. The look of suffering on Ben's face was sending a strange pulsing sensation through Ellie's body, one that she just had to enjoy for just a few more minutes before handing him her half drunk glass of water.

"You have the key for this?" he asked, his whole world still dominated by her bicycle lock.

"Let's sleep on these cushions," she smiled, "then I won't have to unlock you."

Ellie handed him an empty water bottle to use as a toilet and then with the necessaries over, placed one bare foot on the bike lock and used her weight to slide it down the steel bar, forcing Ben into a lying position on the large cushions. She then dragged her duvet from her bedroom, laid it out on top of him and snugged underneath.

"Cool yeah?" Ellie smiled.

"Guess you don't have to worry about me taking advantage of you."

"Exactly, you'd still be chained up when the police arrived... but there's nothing to stop me taking advantage of you."

Ellie wriggled closer until Ben was once again inside her and they made love slowly and afterwards lay there in each other's arms.

"Do you want to know another advantage of having you tethered by the neck?"

"Other than satisfying your kinky sex drive?"

"Mmm, other than that."

"I can easily slide up the cushions and you can't."

Ben watched as the crazy red head wriggled further up the cushions until his face was level with her breasts. He kissed them and after some more wriggling, found himself facing her butt. Her flowery cotton underwear then wriggled backwards until it had him pinned back against the barred door with his face completely submerged.

"Oh yeah! I love the feel of your nose."

"Lucky for me."

Ben ran his fingers around the front of her underwear, touching her gently in the hope of triggering more sex. However, Ellie was a girl who loved to explore her kinky side and tonight Ben would be the guinea pig for some more wild fantasies. Fuck, it did feel sexy having his chiselled face pushed into her butt. This was definitely one to explore.

"I'm so tempted to zip tie you just there?" Ellie exclaimed.

"Are zip ties your answer to everything?"

"Mmm... and don't forget the one around your neck."

Ellie reached up for her box of ties and knocked it off the shelf, covering them both with its contents. Now with plenty to chose from, she slid one under her body and looped it around both her hips and Ben's head. She placed the second zip tie around her upper thighs and Ben's neck and by the time she had finished they were inseparable.

Ellie was tingling again, not only because she had a sexy man's face tied to her butt, which sent sparks all over her body, but also because she knew that she couldn't reach anything to cut them free. Therefore, she was now in self bondage, even if her position wasn't quite as subservient as Ben's.

"You do like my bottom don't you?"

With his head now connected to Ellie butt by an amazingly effective zip tie harness, Ben reached around to the front of her panties and brushed his fingers across her with the lightest of touches. He tucked his fingers inside and continued to stimulate her until she orgasmed, her hips thrusting forward and then finally coming to rest.

Ben's position hadn't changed. His face was still pushed hard against her butt, seeing nothing, saying nothing and smelling and tasting only her. The only difference was that he was now attached to a slight warmer and more tired girl, whose eyes were starting to close.

"Ellie? You have anything to cut these ties?"

With her eyes now closed, Ellie clamped Ben's permanently hard cock between her bare feet and massaged it until he climaxed. Ben lay there enjoying the high for a few minutes, but breathing was still hard as he tried to suck in what air he could from between the girl's cheeks. There was certainly no way he could sleep.

"As much as I love your butt in these panties, I don't think I'll survive the night."

There was no response and Ben could tell from her breathing and the small jerks running through her body that she was asleep.

"Great, she's asleep and I'm still zip tied to her butt!"

He found that she had zipped one of the ties around his neck and her thighs. This in turn was connected to another that encircled her narrow waist. These combined to make for a highly effective harness that couldn't be removed without cutting at least one of the ties. Even after he had removed some of the less effective ties, he still couldn't escape from the harness. He rested one hand on her left butt cheek to open a small passage of air and then closed his eyes and tried to sleep.

Half an hour later, Ellie tried to turn over and woke them both up. She hadn't intended to leave him down there, but even so, the thought of having fallen asleep with a guy tied to her butt made her quiver with excitement.

"Oh yeah, I can't reach the scissors," she said sleepily.

"You're joking right?"

The thrill of being trapped was still exciting her and the feel of Ben's face squirming around behind her was only adding to the thrill.

"Don't worry, I really like these panties," he mumbled, still as aroused as he'd been since she'd brought him back.

"Well if you survive this I may let you keep them."

Ellie's mind swirled as her fit body tried to fight against the zip ties, but despite her strength and agility there was no way her slim negligee clad body could escape the ties. Her attempts to free herself awakened her and she placed Ben's hand inside the front of her panties so he could finish the job. Again she reciprocated leaving Ben panting deeply into her damp white underwear, one side of which had pulled right up between her cheeks.

"Oh I just love to be tied up," she breathed.

She looked around and managed to reach a small trophy with a rough metal base from the nearby shelf. She handed it to Ben and ten minutes later there was a popping noise as the thick red zip tie broke. Ellie slid back down the cushions until she could cuddle into Ben's chest. It felt lovely to be held tight. The wine mixed with her sexual exhaustion and within seconds she was asleep.

Ben had a face full of long curvy red hair, but chose not to complain. He'd made love and was cuddled up to this beautiful girl, even if she still had him chained up by the neck. Hopefully she would wake relatively sober and remember where she had hidden the key.

Ellie was smiling when she woke the next morning, still wrapped in Ben's strong arms. She wriggled free as carefully as she could and knelt down to watch her man. He seemed oblivious to the heavy red lock around his neck and looked so peaceful with a slight smile on his face which twitched as he dreamed. He was still naked from the waist down and she could see his erect penis. She touched and played with it gently, as if discovering boys for the first time.

Ben finally woke and looked up bleary eyed at the redhead standing above him. She was dressed in blue jeans and a thin black jumper and was sipping coffee. He stretched and tried unsuccessfully to stand up, which brought a smile to the woman's lips.

"Opps, I must have forgotten to unlock you last night," she said casually.

"Guess so," Ben replied, sliding the lock up the metal bar to get back to a sitting position, "It was fun though."

Ellie nodded coyly.

"Are you going to let me out now?"

This time Ellie shook her head, just as coyly.

Ben tried to reach her body, but she stepped back out of his reach, holding her hand to her mouth and looking at him with wonder.

"Shall we make love again?" he asked hopefully.

"I have to go out."

"Okay. Are you free tonight?"

"Maybe," Ellie smiled.

She picked up a bunch of keys and pushed them inside the back pocket of her jeans where they formed a bulge. She ambled back and forth picking things up, getting ready to leave, while Ben watched the bulge with growing concern.

"Oh and I thought you could polish my boots," Ellie said, now pulling on her black leather jacket.

She was making for the door and Ben was still chained by the neck, the same as he'd been since she'd turned the key in the lock almost ten hours earlier. She was an amazing girl and it had been an amazing night, but he still didn't want to spend the day chained up alone in her flat.

"Ellie, you can't leave me here!" he cried, both hands now holding the thick bar of steel that encircled his neck.

"My boots!"

The bulge in the back pocket of her jeans disappeared from sight, followed by the sound of the lock on the front door opening and then relocking.

"Fuck!" Ben called out to the empty flat.

She'd gone and left him a helpless prisoner in her flat. While the thought excited him, the prospect of a day alone was daunting. He looked down at Ellie's boots, the ones that she'd worn the night before. They were beautiful black leather, a modest heel, slim and elegant up to the ankle. He held one to his nose and breathed in the scent.

He picked up the polish in one hand and the first boot in the other and started to rub. There was something rattling inside. He tipped the boot so that its contents moved to the heel and then dropped out on to the floor. The key! Fuck, it was just another one of the crazy girl's games. He checked the round key that had reportedly spent the night in Ellie's underwear drawer, dropped it back into the boot and left it there until both boots were gleaming.

Ben was almost disappointed; now he was able to get free he almost wished he couldn't. He waited another few minutes before pushing the round key into the lock and turning. Instantly he was free and seconds later he was on his feet and staggering semi naked towards the coffee machine.