An Antique Contraption

As you're led to this remote corner of museum, you're startled to see a sudden change to a more Edwardian interior design. Floral wallpaper, wall-mounted lamps and faded, sepia photographs in elaborate frames create an immersive backdrop for an awe-inspiring device. As you stare in confusion, you try to make sense of the gears and poles. You notice a load-bearing base of black-pantined steel, with two large cogged halfcircles running parallel on either side. Between them is a gyroscope-looking mechanism. You notice beams of a dark, luxurious wood and also a dark leather seat, all connected by supports and axels to the large half-wheels. It's all finished with instricate and recently polished brass decorations that ultimately gives you the bizarre impression that this had been a decorative piece of someone's living room.
Minxy seems slightly lost in thought and while Big Lindsey waits for her to retake charge, you quickly scan the sign:

This Antique Fixation Device (1906) was built by Adcock and Sons on commission of Priscilla White. Able to restrain males in a variety of useful poses, it was entrusted to the museum by Miranda White in 1994.

Minxy turns to you and there's a slightly manic glint in her eyes. She strides confidently up to you and with little hesitation grabs you by the balls. While her grip is fairly firm, it doesn't hurt you and as she tugs on you it's gentle enough that the threat only remain implied. It's the gentle pulling that would accompany a really loving handjob, but right now it's pulling you imperatively towards this strange contraption. Emphasis on trap. Big Lindsey follows along and you all step past the exhibit cordon, blatantly and almost gleefully ignoring the Do Not Touch sign.
Minxy parks you squarely in the middle of the device. She sends Big Lindsey a wordless look and the large schoolgirl kneels down and starts to move pieces around. Meanwhile Minxy is once more all up in your face. Her warm hand around your balls is soon joined by its twin and she starts gently massaging your balls, slowly coaxing another erection out of you. One hand moves up to leisurely stroke your cock while she sucks on your neck. You bite down a gasp and just stare down at this young seductress.
"I bet you're gonna enjoy this almost as much as me.." she giggles and quickly licks her hand before she starts palming the head of your cock. The feeling is so intensely arousing it almost isn't pleasurable, but as you attempt to writhe, you find that your feet securely bound to two seperate wooden blocks.
Minxy smiles impishly and pulls up her skirt. You're teased to a glorious view of her black, semi-transparent panties before she slides your spit-lubed cock in between her thighs, tightly resting against the warmth of her pussy. The feeling is divine, the throbbing and wet grinding of your bodies and you're so occupied by the feeling that you barely notice Minxy grabbing your arms and raising them, until another wooden beam is lowered over your head. They slides together like well oiled machinery and before you have time to rethink your predicament, you hear the click of a lock.

And you find yourself captured in this Edwardian set of stocks - caught in a standing position with your neck and hands affixed to one beam and your legs in similar restraints.

Minxy and Big Lindsey takes a moment to admire their handiwork, running their greedy eyes up and down your semi-nude form.

"Well, ****?" Big Lindsey finally says.. "Ready to begin?"