You pick up the snakeskin-print t-shirt, wondering what it might do. It has a scaly pattern, and is somewhat attractive, with a yellow tinge melting into green, and random black spots. Since the blue t-shirt changed you into a guy, was it possible the snakeskin tee could change you into a snake? You shake your head incredulously at the idea that your entire physiology could be changed so much by a mere shirt. After all, with the blue t-shirt, you were still human. Maybe the snakeskin shirt only changes your skin into scales, or gives you fangs, or something superficial. You are somewhat wary, but you were able to remove the blue t-shirt without trouble, and there was no reason to think this would not be the same. Your curiosity getting the better of you, you push your nagging doubts out of your mind.
Taking off your current shirt, you are about to put on the snakeskin-print t-shirt when you hesitate. You still have on your pants and underwear. Would it be better to remove those? You think back to your experience in the blue t-shirt, and remember how your bra disappeared when you had the t-shirt on, but re-appeared when you removed it. Moreover, you physically changed into a male, and while your clothes felt strange, they still fit your new physiology without being too loose or too tight. You examine your current outfit, and decide it doesn't really matter to you if something happens to it, since you have plenty of other clothes you like more. Your final concerns dealt with, you take a breath and pull the snakeskin-print t-shirt over your head.
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At first, you have the strange sensation that the world has tipped on its side. You blink in surprise...and then realize you cannot blink. In fact, your eyes feel odd, and you cannot close them at all. That is when you note that the world has not changed orientation, but rather, you seem to be lying on the ground. You reach around with your hands to push yourself up, but you cannot seem to move them. Rather, your body wiggles a bit from side to side. After a bit of awkward thrashing, you manage to create some forward momentum, and inch towards the bathroom to get a look at what happend to you in the mirror. However, when you reach the bathroom, you realize that you are far too low to see into the mirror. You find it annoying to try to move around without using your hands, but by maneuvering your body, you manage to leverage yourself onto the toilet lid, and from there, to reach the sink countertop. Before even bothering to look in the mirror, you wriggle more of your body onto the countertop until you feel somewhat assured that you won't slip off. Finally, you turn your head and face the mirror...
...and nearly fall off the sink counter in surprise at what you see. The head staring back at you is definitely that of a snake, and a large one at that. You can't blink or wave at the mirror to confirm the reflection is you, so you do the next best thing: you stick out your tongue. The snake in the mirror also sticks out its tongue, but you almost don't register that fact, or the fact that the tongue in the mirror is forked, since you are suddenly overwhelmed with new information your tongue seems to be gathering from the air. As your tongue flicks in and out in what feels like a natural motion, you know, without understanding how you know, that you are alone in the apartment, although there are faint traces of other creatures in the air. Pulling your thoughts back to the reality in front of you, you turn your head to an angle, then tilt it back, trying to get a good idea of what kind of snake you are. It is only at this point that it occurs to you that you have not taken a look at your body. Carefully turning your head and "neck" as you maintain your balance, you spot a long, thick, scaly mass lying spread out across your bathroom floor. You turn to follow it with your eyes, and to your surprise, find it leads up the side of the toilet, across to the counter, and right up to your head.
While the idea that you have turned into a snake is amazing enough, the sheer size of your body astounds you. Almost to confirm that the body you see is yours, you try to move the tail end of your body, mentally picturing moving your feet. As though it were natural, you spot the tail moving back and forth. From the size, you realize you must be some sort of python or anaconda, since you know of very few snakes that would grow to the length you now see. Although you don't actually feel bigger, you are certain that your new body is at least fifteen feet long, if not more. For a little while, you are lost in the wonder of what has just occurred. However, your euphoria is shattered by a sudden thought: what happened to the t-shirt?!
In a bit of a mindless panic, you again try to move as though you have hands, twisting and turning. Due to your lack of concentration, the part of your body on the countertop slips off to the floor with a thud. Luckily, you are not injured, but the shock brings you back to your senses. Staying still a moment, you try to analyze the situation. Putting aside the possibility that you might be stuck like this, you try to envision how you would accomplish the act of removing a t-shirt when you have no hands and, more importantly, no t-shirt. You know that snakes shed their skin, and you wonder if a similar action would change you back into a human. Maneuvering your huge body about, you attempt to rub your scaly mass against the corner of the cabinet. While the skin does not rub off, you feel something abnormal, almost as though there is a bit of fabric bunched up above the area that you rubbed against the cabinet. Concentrating intently, you pull your tail around, and carefully angle the tip so that you can poke the spot. Almost as though it were a finger, your tail slides under the bunched scales at that point and pulls them upward toward your head, and before you realize what is happening, you are lying on the cold tile of the bathroom floor with the snakeskin-print t-shirt held in your hands over your head, human again.
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It takes a little while to digest everything that happened, and in the meantime, you go about your chores, every so often sneaking a glance at the snakeskin-print t-shirt lying on the bed where you tossed it. By the time you have finished with your routine tasks, the t-shirts are the only thing on your mind. Walking back into the bedroom, you stare at the snakeskin-print t-shirt, now not so scared since you successfully changed back. Picking up the shirt, you decide to...