The glass presents you with the image of a lion instead of your own reflection. Now this would be a rather impressive trick in it's own right, but whoever had designed this was apparently quite ambitious. That, or they were just depraved. No, the feline was standing upright on it's front legs, following your every movement. This too is quite strange, and a very novel feat in the field of optics. This lion, however, is standing on it's forepaws.
Indeed, instead of yourself in the mirrors you see a reflection of a male lion, balancing awkwardly on it's front legs, it's ass pointed up in the air and facing you. It looks perfect, too. You can make out every little strand of fur covering the beast's body. It looks like the real thing, even though you have some serious doubts about lions working that way. The most shocking part, however, is of course the animal's rear, which is currently staring right back at you. Furthermore, this lion is anatomically correct. You can see it's penis tucked snugly between the creature's hind legs, hidden within a fuzzy sheath, it's large balls dangling and flopping around just above it. You can also see a fleshy, puckered hole nestled underneath it's tail, which is currently idly swaying.
You are, of course, completely and totally shocked by this display. For a start it's bizarre suddenly being confronted with something so absolutely perverse. You also can't help but to wonder just how they pulled this off. Perhaps it's not actually a mirror? Perhaps this is all the work of the magic of recording and video editing. You can't think of any reason why anyone would do this, however. And yet the odd nature of it all just keeps pulling you in.
You experiment a little, wondering just how far it will go. As best as it can the lion in the glass mimics your every move. Walking around causes it to shamble around the room on it's forelegs, a task with which it seemingly has some difficulty, but it can keep up with you just fine. Gesturing with your arms cause the hind legs to stretch and move. Moving your head doesn't seem to cause any sort of reaction, though you do notice something interesting. The motions of the lion's anus seem linked to your mouth. Opening causes it to dilate, showing off the slimy pink flesh within, while closing tight causes it to twitch and clench. How curious. Amusingly, you try your hand at speech, offering the big cat in the mirror a casual greeting, and the lion's butt responds in the best way it can, yawning open letting out a small, barely-visible puff of condensation, startling you for a moment, putting your hand over your mouth reflexively- Which the lion tries to follow, it's back legs crossing themselves one paw trying to get into a position to cover it's exposed asshole, almost as if the poor thing was embarrassed.
You immediately start laughing at this, as strange as this whole situation was, you are starting to get into it a lot more. It looked so silly! You couldn't even begin to ponder how advanced whatever editing technology the had to use to make this work, but it was pretty spectacular. And the very... Lewd view of him aside, you have to admit that you were starting to enjoy the subject as well. Admittedly you always had a certain fondness for lions... The veritable kings of the animal world, as their reputation goes. And the one used as a model here was certainly handsome. It looked so strong, sleek, powerful... Of course, once you got past the pose it was currently in. You can even see it's head reflected from one of the other mirrors, with it's fierce eyes, and covered in a gorgeous mane of luxurious fur...
You move closer to the mirror, watching the lion following you, giving you an even better look as it draws closer... Slowly you reach out to touch the surface, watching as one of the creature's paws reaches out to meet your hand. As they make contact you feel the cold glass, looking over the creature closely, somewhat awed, and even a little envious. As you pull back you even notice that where you put your hand a moment ago there is now an upside-down pawprint on the surface. That's a cool effect. What you don't quite notice at the moment is that it's real.