In the late 19th century, Edward, Prince of Wales and later king of England after the death of his mother Victoria, was quite the ladies man, being known for his pleasure-filled visits to Paris. He liked to frequent the high society salons, eat heartily (to excess) and go to many of the brothels in the city - especially the more expensive and select.
He also became quite obese from his overindulgence in food and alcohol. So apparently a special chair was designed for him so that he could couple with the ladies, without him having to lay down or exert himself unduly. I think this was at the Chabannais brothel, but in any case this chair was essentially a gynecologists chair in which the ladies could lay down on their backs and rest their legs in stirrups/holders. The prince could then take them standing up.
Of course the chair was not a simple utilitarian design - that doesn't do for princes of the realm - it was richly ornamented and incorporated a lot of time-consuming decorations and unnecessary frills and eye-catching designs and so on ... but essentially it was a gyno chair with the Prince of Wales having sex in the stirrups.
So anyone having these kind of fantasies is in exalted company ... ha ha