On entering the second room, Sophie spotted Gemma, hardly three steps away. Still wearing the restraints, she was contained and held by straps within the narrow cage. Apart from the eyes that turned to regard Sophie from above a shivering rubber bulb, she was motionless. Had she not been so engrossed by the sight of Gemma, Sophie might have realised her fate much sooner. Before her stood the chair, a chrome and black leather mantis about to seize its prey. Beside it, in identical uniform to Victoria, stood Amber, complete with devious smile. Sophie gave a plaintive 'Mmmm!' tried to halt further advance only to earn herself a stinging crack across the behind from Victoria, followed promptly by a harder one from Elaine. Amber assisted Elaine and Victoria in lifting Sophie, twisting against her straitjacket, into the cool embrace of the chair. The polished leather of a cut-away seat slid under her behind, straps whisked about her neck, waist and enclosed arms to the rattle of chrome buckles. Her legs were seized, lifted high and wide apart to be secured with more straps into padded U-shaped rests at the ends of chrome bars that sprang out at an angle from each side of the chair.

Helpless in lewd display before them, Sophie became aware of another figure seated in shadow by the wall. In her black dress, sat Barbara, watching intently. A scraping sound had Sophie turn in wide-eyed alarm to see Amber at her side in the process of adjusting a bright chrome stand from which was suspended a bulging, pink rubber bottle. From the bottle spiralled a length of clear plastic tubing. Sophie's gaze followed this down to see, swaying at the end, a translucent pink rubber nozzle equipped with small valve. On comprehending its purpose Sophie struggled afresh, squirming her legs, tensing hard against unyielding straps whilst incoherent protests oozed from behind the gag.

It was Victoria who took up then passed the pink nozzle under Sophie's widespread legs, Victoria who held it over the ceramic bowl beneath the chair to release a little of the liquid, causing small, trapped bubbles to quiver within the pipe. It was Victoria's rubber-gloved fingers that squeezed clear lubricant jelly from a small tube on to the tip of the nozzle.

Sophie stared mesmerised as the spout disappeared from view, obscured by the bulge of her folded arms, stiffening suddenly as the moistened head of the object pushed against the puckered muscle of her anus. She tightened to resist its entry, cried through the ball-gag, squirmed anew, but nothing could prevent the nozzle squirming cool and hard up her rear passage until it entered her rectum. Elaine and Amber watched Victoria twist the small valve. Bubbles scurried through the pipe at Sophie's side as the surge entered her. The effect she found electrifying.

Elaine stood framed between Sophie's legs whilst, at the opposite side of the chair to Victoria, Amber reached down to the white ceramic bowl. A sound of swirling water then Sophie stiffened as the nozzle was slowly withdrawn. The chair shook when Amber rotated a large chrome wheel at its side. Sophie's balance altered as she was tilted forward, tilted until the bowl pressed under her thighs. What was at first a vague turbulence within her belly now became an insistent churning, a churning that grew until throbbing drums beat inside. Sophie willed herself to contain the pressure but to no avail as she succumbed to that which had no thought for dignity or decorum. Sophie moaned aloud as her rebellious body discharged its contents into the gurgling maelstrom beneath. Her shame was total yet behind the shadows of this direst of situations glowed a flame of ecstasy.

Warm water sprayed her groin. Sophie closed her eyes as latex hands soaped her with probing intimacy. When the rinsing was done, when they had tilted her back, she imagined her release would follow, imagined she might retreat from the scene of her humiliation to hide away in darkness, never to have them set eyes upon her again.

The hands resumed their work, jelly-lubricated, fingers slipping with ease between her legs spreading her pussy lips, stroking her anus. It must be Victoria and Amber but she had no desire, no intention of acknowledging their presence by opening her eyes. She could offer no resistance to the teasing of her clitoris, none to the second intrusion up her back passage. It seemed they were going to induce her orgasm, perhaps a consolation to offset her degradation. Then the hands withdrew and Sophie did open her eyes.

Barbara had moved to join the small group whose attention was upon the object resting in Elaine's hand. Sophie, upon seeing it, was beset by churnings of a different kind. The two-pronged instrument of lust glistened with lubricant, one member an ample, realistic cock in flesh-coloured latex, its parallel companion of only slightly lesser size. Both were mounted upon a moulded rubber base from which trailed a black electric lead.

'Shall I do the honours?' asked Victoria.

'Please do,' answered Elaine as Amber once more rotated the wheel.

The chair shuddered further back until Sophie lay horizontal, her stiletto heels pointing toward the ceiling. Four pairs of eyes looked down upon her helpless form as the double-barrelled dildo touched against her pussy. For a time, Victoria let the bulbous head course back and forth, lingering at the portal, teasing Sophie's clitoris whilst its companion stroked her oh-so-sensitive sphincter with exquisite touch.

A switch clicked. The dildo began to hum like a tuning fork. Sophie squeezed shut her eyes as it spread her pussy-lips, as it eased into her anus to begin voluptuous advance. She drew breath, cried, 'Aaah! stiffened involuntarily whilst the shafts pushed remorselessly until both speared her to the hilt, arousing her as a bow arouses notes from a stringed instrument. Control of her passions slipped from whatever grasp she once possessed. The oscillations fired every nerve, charged every vessel, until her bound body sang in harmony.

Unseen hands stroked the hair away from her cheeks, dabbed saliva from the rubber ball but Sophie, no longer caring who was present, worked her pelvis about the double organ as it writhed within. The burning effervescence became an all-consuming lust. Her head rolled from side to side, her thighs quivered as the orgasm gripped, her muffled cries echoed about the chamber.

Sophie still trembled as the double organ was withdrawn. Then Victoria's voice. 'She comes very easily, don't you think?'

'Yes, just like our little friend over there,' replied Elaine. 'We should give them a few toys and let them sleep together.'

'Wearing restraints, of course,' added Victoria, as Elaine and Amber unfastened the chair straps, 'otherwise they'd exhaust themselves and be no use to any of us.'

'My, look at the time,' said Elaine, glancing at her watch. 'I really must get on with things or there'll be no afternoon left.' In parting, she offered a smile to Victoria, an expressionless glance at Amber, and a knowing look to Barbara. Victoria observed her pick up the three-tailed strap.