The warehouse in the backstreets of Tokyo looked much like the others in that district. There were lots of import/export companies in the surrounding streets so the local Yakuza family were able to blend their operation in amongst the other busy commercial premesis without drawing any unwanted attention from the Law. Not that they posed much of a problem - most of the Police chiefs in the city were in the pay of the family anyway. Problems could be made to go away.
At the back of the warehouse were the usual offices, washrooms and canteens, as well as a few small cupboards for cleaning supplies etc. If you didnt know the bunker was there you would never have found it. The iron trap door was well concealed.
The bunker was built as a bomb shelter during the war and used to ensure the employees of the factory suppling the Japanese war effort were able to continue their work as soon as possible after a raid. Ten metres underground, it was a small annex of two rooms - one large enough to accommodate 50 people in relative comfort for an hour or two, and a smaller room that was sleeping quarters for about 10 people.
These days however, the Yakuza used this bunker as their interrogation facility - with most sessions conducted in the presence of the family Boss, Yamamoto San. The smaller room still used as sleeping quarters and the larger room now a well equipped torture chamber, which due to its size still looked quite spartan. Yamamoto San was the kind of man best described as a Psychopathic killer, and was widely feared in the city, and known for his cruelty and sadism towards anyone who he deemed to have shown disrespect to him. The other thing Yamamoto San was known for was his fierce protection of his two young daughters - Keiko and Yumi. None of Yamamoto Sans considerable wealth was spared for his two 'empresses' and the two girls were well used to getting anything and everything they wanted.
At 22 and 20 respectively Keiko and Yumi had already long shown that they had inherited their fathers enthusiasm for sadism. It was five years since they were first allowed to 'play' with a prisoner, and their interest in S&M had been strong ever since. Many hours had been spent watching the brutal S&M films that the Yakuza financed, produced and distributed and it wasnt long before the girls set about the task of acquiring victims to experience the painful effects of their sadistic fantasies. These days the Bunker was where the two of them spent most of their spare time, entertaining themselves with the suffering of the guys they had drugged and kidnapped. Yamamoto San was very tolerant of his Daughters, although the number of bodies he had had to ask his underlings to dispose of recently was causing even him concern. He would have to have a word with them - they were only young ladies exploring their interests and they would probably mellow with age, he considered.
Getting the guys was easy, the girls were very attractive and very well dressed. Keiko was tall and slim, with long shapely legs, her navel length hair jet black, and centre parted exposing a long angular nose and smoldering sleepy eyes but mostly hiding ears which she felt were a little too large. Yumi was shorter, and not quite as shapely as her sister. She had a slight frame and a flatish chest, her round high cheekboned face topped by ear length black hair, usually in a side parting. She had large accusing eyes, and many had felt a chill as she pierced them with her stare. Sitting in a bar, they would select a victim - usually a lonely single middle aged salary man, so happy to be receiving the attentions of two sexy ladies like this, that the question 'what's wrong with this picture' never even entered their heads, so that by the time the drug kicks in they are already in the girls car, supposedly heading to a Love Hotel, but in actuality heading to the bunker, with a couple of weeks of misery and pain in front of them. And nothing else. Of course the first they know of it is when they awake, either hanging from the ceiling by the wrists, or firmly strapped down to a large, thick wooden torture bench.
This new plaything found himself in the former predicament. Suspended six inches from the floor, he was gagged, with a large black ball gag and his legs had been shackled together with a heavy 3 inch chain. He was naked. As he came to and began to struggle and try to call out from behind his gag, his two captors shared a sly smile with each other. As usual they had taken their time preparing for tonights torture session. The first one with a new guy was usually the best, both girls savoring the fear of the victim as they realized the seriousness of their situation. Realizing for the first time that the two flirtatious young girls offering a couple of hours of casual sexual relief in the bar were in fact two very sadistic dominatrixes, who were going to thoroughly enjoy putting their victim through very many hours of hellishly excruciating tortures.
Keiko had chosen an outfit in her favorite black latex. Every piece made to measure in incredibly shiney 1mm thick rubber, clinging deliciously to her slim, shapeny figure. She wore a boned corset, supporting latex stockings and a pair of shoulder length gloves. Knee high patent combat boots enabled her to stand for long periods and helped her balance when a whipping or other activity started to get really physical. A rubber collar with long sharp spikes only accentuated her scowling, angry demeanor. She had shaved all her body hair.
Yumi preferred something more minimal. A pair of studded black leather hot pants, zipped all the way through and a studded black leather half-cup bra. She wore very thin black leather driving gloves and a pair of black patent leather stilettos. She had swept her hair straight back and applied wax to it to keep it in place, even when she became hot from the exitement and exertion of the treatments she loved to administer.
The two of them had been sharing long, lingering french kisses, enjoying the smooth sensations of each others bodies and feeling the building anticipation of the session to come when their subject stirred. The sly smile was followed by one last passionate kiss before the two torturesses languidly sauntered into the chamber and approached their victim to introduce themselves.
They loved to start slowly, explaining in dreadful detail some of the things they had in store for him, and making sure he was fully aware of the fact he had no escape, no chance and that everything that happened to him for the rest of his life was to be decided by Keiko and Yumi. The psychological aspects of torture were something the girls were well aware of. Of course the tortures would be horrible to go through, but why waste the opportunity to instill fear and dread into the prisoner first? The nervousness and stress in his body would give their physical ministrations even greater impact. He would struggle more, scream more and the surges of power rushing through the girls bodies would become almost overwhelming.
As they spoke they would stroke their naked prey softly and erotically. Giggling, the girls were always amused by the ability of men to become aroused by them, even as they pointed out just how far under the ground they were, how his screams would be copious, loud and unheard by anyone except the two female devils who were causing them to burst from his lips.
Although the older of the two sistes, Keiko was the quieter of the two, and was happy to let Yumi do much of the talking.