You searched around the store, undecisive. Would you go with a wolf? A dog? Maybe a big cat... A lion? Tiger? Panther? Maybe a mythical creature like a gryphon? A dragon? The paradox of choice dominates you, causing hesitation in every bone in your body, until you spot a splash of orange color at the end of the aisle you are looking down. A fox. You can go as a fox.
You walk over to those costumes, looking at all of the different varieties, but knowing what you wanted pretty well nonetheless. You picked out a fox costume to examine and held it out in front of you. It was a deep shade of orange on most of its body. It was an uneven orange, with small dark specks, only visible up close, dotting its back, legs, and arms. Its chest consisted of pure white fur, that went up until the lower jaw of its canine muzzle. The arms and legs were a starkly different shade of dark brown from the wrists/ankles down to the fingers/toes, which ended in small black claws, and as were the vulpine ears sitting atop its orange head. Its tail flows perfectly down its spine, orange and bushy with a small white tip.
You are frozen, fixated on the costume, but you eventually break out of your trance, blurting out "Perfect," with thankfully no one around to hear you. You go immediately to the comparatively small front, with just a small kiosk to pay for items. Well worth the $120, you think to yourself. Exited, you go try it out at the changing rooms nearby.
You lock the door behind you to try on the costume. You probably should've tried it before buying, but what the hell, it said "One Size Fits All!" The small changing room featured a full body mirror. You glanced into it, admiring the shape of your own body. It's no six pack abs, but it was obvious you lifted and went to the gym often. You unzip the costume to find its rubbery black interior, and the first thing that hits you is its smell. It smelled as if the last person to use it had been very sweaty and didn't clean the suit, but that didn't stop you. In fact, you think it is just your own body odor. You start stripping down. You first throw aside your shirt and shorts, then something overcomes you and you also take off your boxers. You, thinking its nothing, slip your left, then right legs into the costume, your toes not reaching all the way to the end of the canine feet. That's when you notice something that you had somehow missed. There was a furry sheath for the wearer's dick to go through. Your shock slowly fades though, as you see no reason to not put on the costume due just to some weird kink the costume was made for. Somehow that makes rational sense to you at the moment. You, becoming slightly hard, decide to slip your dick into the sheath, and shudder in pleasure. You, more excitedly, put on the rest of the costume. You slide your arms into the costume, then envelope your body in the costume's white and orange fur. You pick up the costume's head, attached to the back of the neck like a onesie, and pull it over your own, surprisingly not changing your field of view at all. You excitedly stand up to examine yourself in the mirror.
"Right, gotta zip it up,'' you mutter, standing up and pulling the zipper to your collarbone from the costume's crotch. The costume wasn't just a one size fits all, but a one-size-looks-good-on-all. The costume accentuated your frame, even making your muscles seem bigger. Your lightly built abs had grown into a visible six pack and it looked as if you had actually been working out your legs, rather than the thinner ones you had normally. You then look at your cock. Had it always been that large? No. You reach for the zipper so you can see what your body normally looks like again when you grab at only your chest, now covered in fur. "What the fuck?" You try to pull the costume but find yourself pulling at your own skin. You try to pull the vulpine head up off your own head but it only gives a little before setting back in and fusing to your skull. You feel new bones attach themselves to your face as your cock becomes bigger and more vulpine. You feel probing into your ass as the costume invades your asshole to make it fuckable, and your spine lengthens as it fills your new tail. You stand there, shocked, your now black, nine inch cock hanging limply from your crotch, staring into the mirror at your now vulpine body. Your human thoughts still remained, but they are pestered by new thoughts. You find yourself slowly looking down at your cock, and then notice something in the corner of the room. It was a 10 inch dildo. Without even consciously thinking about it, you walked over to the dildo, scooped it up with your clawed hand, and shoved the rubbery material into your snout. Your cock hardens significantly, as you quickly thrust the dildo back and forth into your mouth, and you stroke your cock with your other hand. You take the dildo out of your mouth, and set it onto the floor. You bend your strong legs over the dildo, and feel it touch your asshole as you lowered yourself. You use a finger to guide it into your asshole, and lightly grunt when you feel it penetrate your ass. You thrust your ass against the dildo, grunting and panting, as you grab your cock and stroke it, your muscular chest heaving with every breath. Your cum stains the floor and your fur as you yelp in pleasure and let out an involuntary "Oh fuck!" You pant heavily as you raise yourself off the dildo. You wanted more out of the costume. Jacking off in this tiny room wasn't enough. You wanna fuck other animals. Your cock hardened at even the thought of fucking another fox in the ass, or letting one fuck your muscular body in the ass.