
A centaur girl wears a collar and a gag
designed to keep her from bumming people out with her plaintive cries
as she wanders the bosky woods.
(Source: Bondagerotica art staff.)
The first-ever pony girl was of course the centaur. Primitive people did not have access to our modern technology, so pony girl gear was scarce except for chains, gags, collars and shackles -- but they did have half-human, half-horse creatures roaming the woodlands. So there was that! The pony girls were most often seen in picturesque locations, typically uttering cries of, "What the FUCK? How the hell did THIS happen? I'm half horse? And my butt is SOOO big!" Which is how the tradition of gagging pony girls ... and later, actual ponies ... got established. Who wanted to listen to that all the time?

Early 20th Century pony
girls look innocent enough as they pull their Mistress in a cart, which
of course was
a standard mode of transportation of the time ... but they had a secret!
Source: this one has
been on a variety of sites, but nearly as I can tell, originates on the
Kinky Delight web page.
We move on to the Victorian Era for no particular reason. A pair of innocent-looking Victorian women do pony girl work as they drag a Victorian Mistress in a cart of the time. It all looked very innocent, but in the fashion of the time Victorian women hid their bodies, and also concealed any hint that they were sexual animals, which is EXACTLY what they were, it turns out. Note that these Victorian pony girls are wearing, in addition to the usual shapeless, unflattering garments of their times, a common accessory that has since vanished: the bustle!
There have been any number of theories offered to explain the bustle, but just look at the profile of the women pulling the cart and the purpose of the bustle is obvious: to conceal the butt plug tails worn by the women pulling the cart.

It's rather obvious when
you think about it. Source: Bondagerotica art staff.
Clearly, in less enlightened Victorian times, the sight of the bulge of ponytail butt plugs against the back of a woman's dress could easily have roused unwholesome thoughts in the minds of impressionable males, and that would have been unthinkable, so women who wore ponytail butt plugs wore these devices that exended the back of the dress to hide such bulges. But since there could only be one reason for wearing such a device (i.e, the bustle) that meant that ALL women must wear a bustle, else the sight of the bustle itself would arouse the very same unwholesome thoughts that the sight of the bulge of a ponytail butt plug would arouse. And since they were wearing bustles ANYWAY, almost all of them wound up wearing ponytail butt plugs as well because, you know ... fashion.
Unfortunately, in those days ponytail butt plugs were quite large and made out of iron. (Interesting historical note: just as the Romans lined their plumbing with lead, they also made ponytail butt plugs out of lead. When their ponygirls died in droves from lead poisoning, they assumed it was a curse from the gods for trying to make centaurs out of human women and stopped the practice ... though of course, they never really caught on about the lead plumbing.) Very uncomfortable compared to our sleek modern ponytail butt plugs. That's why in almost every photo of women from that era, they are wearing The Expression. You know the one:

"Sweet Jesus, when am I
going to be able to go home and get this thing out of my ass?"
Source:
Just about every photo ever taken of Victorian women. That's Florence
Nightingale, founder of the Red Cross, at far right. Woot! Who knew?

Under the
crinolines, it's all
butt plug, baby! In fact, if you could wear the butt plug, the bustle,
and all those itchy clothes and STILL flash a convincing smile, you
were a model, no questions asked, in those days. It was just that
difficult.
Source:
Reasonably Attractive and Friendly Women On Parade Illustrated, an
early porn mag.
Next we leap forward to the 1970s, also for no particular reason. With the freed up freedom of expression and nudity of the times, the ponygirl became a great deal more visible, i.e., naked.

"Well, the pay is
nonexistent and there's no clothes and you get a stall instead of an
apartment, but ... all the oats you can eat!"
Source: the 1970s art house film, Check
to the Queen.
Since most 1970s pony girls were seen in art house films, something bad had to happen to them or their owner, because that's just the way art house films are. So itwas largely a downer period for pony girls in mainstream films, with the possible exception of Perils of Gwendoline, a movie so stupid no one could take it seriously, so ... there's that!

Notice, no
ponytail butt plugs in the pony girls of "Perils of Gwendoline in the
Land of the Yik-Yaks." Strangely, this feature is missing from 1970s
mainstream pony girl imagery. But there were plenty of leather straps,
helmets, and sometimes gags, in the few mainstream pony girl scenes.
Well, these two. There was not a lot else.
Source:
Perils of Gwendoline in the Land of the Yik-Yaks.





