You look at the weird outfit splayed across your kitchen table. Definitely a costume, one of... well, it looks like a horse. Moving your eyes over it in your sheer dumbfoundedness, you quickly notice that while it looks to be about your size, it's definitely as big as a real horse in at least one way. Almost reflexively, you rush down and lock your door - don't want anyone walking in and getting the wrong idea. After all, it's not like you sent for this.
But then, you wonder, what kind of person would send for it? It's a full-body suit, one with what looks like a pair of extremely uncomfortable hoof-shaped boots at the feet and a full-lengthed horse face with a pair of holes for eyes and a long, hollow muzzle. No teeth in the muzzle, which sits limply, a fact that doesn't exactly make the costume more believable. But then, the hands end in hoof-like fingers, which certainly does help the look but must make it prohibitively difficult to do most anything while wearing it. On top of that, the latex rubber that it's made of certainly is rather shiny and does feel rather nice, but it must be as hot as an oven inside of it. Whoever it was actually made for must be willing to go a pretty long way to satisfy their kinks.
On that thought, your eyes reluctantly move downwards towards the one part you hadn't investigated. Like the muzzle, the part of the costume where a penis is apparently meant to go looks completely hollow. It's long enough to fit a horse, you'd imagine, but how a human being could hope to fill it out is anyone's guess. At its base is a sack - you don't need to do any imagining to figure out what that's for - and it's similarly large. Maybe something else is supposed to help fill that out? You shuffle through to box to see if there's an extra piece or something, maybe some soft chunk of foam, but find nothing. Then you stop yourself, realizing that your curiosity has you trying to figure out how to jam a cock into a costume.
The box itself has no return address, or even mailing address. There's no logo, no text, nothing to indicate where it came from. Whoever delivered this must have done it by hand. The thought that it's a joke crosses your mind, but then you realize that something like this must be custom-tailored, which would make getting it your size extremely difficult. Then you consider that it might be for one of your neighbors, but that doesn't make sense either. None of them are the sort to be into stuff like this. Looks like you'll be stuck with it, unless you want to go and hang posters up. "FOUND: One latex horse costume. Brown. Belongs to someone with a massive cock and huge balls." Yeah, that would look just great on the community bulletin board.
So all that's left is figuring out what to do with it. You could destroy it or dump it somewhere, but somewhere in the back of your mind you just don't feel comfortable getting rid of something that's worth as much as this costume must be. You might be able to sell it, but then, you might as well just broadcast "I AM A PERVERT" to every television in town. The other alternative is to keep it, but keeping something that you never have and never will use? Then again, there is Halloween. Your clothes could probably fit over the costume pretty easy, so you might be able to hide the weird stuff down there. And if anyone asks, you could always just say that you found it cheap at a yard sale and love Halloween enough to be willing to buy it. Yeah, flimsy, but it's a good enough excuse for the people you know.
Of course, that leaves only one question: how well does it actually fit you?