PonyGirl is an exercise in 'great concept, terrible delivery.' This is one narrow niche and no actual horses/ponies are involved. It's the adventure of one very obedient slave who dolls herself up in pony gear, prances around her environs, and gets a thorough whipping if she misbehaves. It's an interesting gimmick (I can't think of very many sites that offers what this one does), but there's simply not enough material to make this worthwhile.
Since this is fetish site don't expect to see any hardcore or even very much nudity. In fact, there really isn't that much to look at here. There's a scant nine video clips, which is hardly enough to keep most people glued to the site. The vids can all be downloaded and watched in poor-looking Windows Media or good-looking MPEG files.
The action mostly consists of the slave submitting to her mistress' will and doing whatever is asked of her. Some of the requests include giving her mistress horse rides, jumping through hoops etc.
She's geared up in a harness with a champ in her mouth and leather boots, which resemble hooves. When she's been a bad pony, her mistress disciplines her. Whippings and sensory deprivation seems to be the preferred methods of making sure the pony behaves herself.
I really wish I could tell you more, but that's all there is to this site. The only thing that justifies the cost of admission is the 25 bonus sites, which are filled with a much larger number of hard and softcore pics and vids. None of that content has anything to do with pony fetish action, but there is a reasonable amount of bizarre/BDSM fetish material.
This is a pretty disappointing site. Not only is there not very much material, but the network doesn't have any interest in updating the content.