The shop owner looks you up and down, smiling with satisfaction as she works out that you had taken her advice.
"I came by to give you these," she says, holding up one orange and one cyan shirt, "consider it a gift for supporting my business. They're not going to be on sale just yet, and since you've been such a big customer, I thought you might like to test them."
"Certainly! If they're prototypes, though, does that mean something might go wrong?"
"Don't worry, my magic is perfectly reliable. They aren't enchanted so that you can't take them off again, so you'll be perfectly fine. Just to add, they act like the grey, white and yellow shirts in terms of combinations, but can't combine with each other. I'll give you a teeny hint – they way they work means you can't use the black shirt either." She prepares to leave, but before she does, she turns around.
"The name's Hecate, by the way."
----------------
After she leaves, you look at the two shirts. You toss a coin and pick the cyan shirt.
You pull the cyan shirt over your head, and feel a couple of changes. First, a penis has grown again (which you are quite experienced with), but your nipples seem a bit tight against your shirt. You pull down the collar, and find to your amazement two short, stubby penises where your nipples should be, extending an inch from the surface of your breasts. They seem to be in cavities of some sort, almost as though they might be longer... you feel yourself beginning to get turned on, and they begin to harden, and do extend after all, reaching 3 inches long from breast surface to tip. They feel quite longer, but much of them are buried inside your chest for structural support.
Then, you feel your mouth being forced open, and see why when you look down. If you're not mistaken, you see the tip of another penis poking out. You turn to the mirror and find that it must be 6 inches long at least! You find yourself incredibly aroused, and take a curious suck, feeling jolts of pleasure at the sensation. Your hands begin to approach your lower body. As you suck on your tongue-penis, your left hand rolls the shirt up your chest and darts between the nipple-penises while your right hand continuously pumps your lower penis. You can feel blood pulsating through your various dicks as pressure builds in them, culminating in orgasmic release as you reach climax, launching streams of semen across the room, splattering the mirror. You crumple to the floor, panting, your penises hanging limply from their positions. You slowly recover on the floor, and feel the nipple-penises retract, along with the tongue-penis. You find that the tongue-penis can fit snugly behind your teeth when your mouth is closed, but when you open it, it extends (but remains soft), coming to about half an inch in front of your lips. Fortunately, it's not as thick as it was when erect. You try speaking.
"Thith wath un interethting chanzhe," you say, finding yourself only able to talk with an extreme lisp due to the appendage extending from your mouth, "ung I could get uthed to thith voith too."
Still, it doesn't seem practical, and the semen soaking your shirt is beginning to become cold, so you take the shirt off and toss it in the slowly-filling basket of wet T-shirts. Before you try the orange shirt, though, you get a wet towel and clean off the cum-coated mirror.
You think that nothing could top your experience with the cyan shirt, but then you pull on the orange shirt. You feel like your mouth is extremely contorted, and thank the fact that you cleaned the mirror because you can see exactly why. Your lips have not only turned vertically, but have become a full-functional vagina! Your nose, too, has morphed, becoming a nub-like clitoris poking out about half an inch from your face. You turn your head a couple of times, feeling your labia flop about loosely. You then try to speak.
"Haphhhing a phhaghina phhhhoor a mouphhh iphhh phhhretty phhhhun..." you say, finding that you can make some consonants, but generally can only make consonant sounds with your vaginal opening, turning most of them into a long "phhh" sound.
You then look back at the laundry basket, and remember the yellow and white shirts. Perhaps you could use those as well!
They are still quite soaked with milk, but you quickly put them in the washing machine and wait for a while. In the meantime, you do some more experiments. You find that the green shirt doesn’t replace your mouth’s vagina with a flower, although it does tint the labia the same green as the rest of your skin. Finding that it’ll be two hours before the shirts are done, you take off the green shirt and put on the centauress shirt instead. As your first shirt and the one that actually saved your life, you decide to get more used to using it.
Over the next two hours, you first practise walking on four legs using a treadmill, which, after forty minutes of trips and stumbles, culminates in a reasonably natural posture. After that, you spend twenty minutes walking without concentrating, managing to do so reasonably. After stepping off, you try walking around the house without knocking anything over. After a few bumps against door frames, you eventually start to be able to keep your large lower body out of the way. Then, you return to the treadmill and try to walk and use your arms at the same time. Over time, you manage to work out how to use six limbs at once – without breaking anything, of course.
Finally, the shirts are done, and you take off your current shirt, pull out the orange shirt (as they have separated now) and put it back on. Then, you collect pick up the yellow shirt and walk into the bathroom, where you wear that, too. You feel the familiar feeling of piss running down your leg, but more importantly, you can taste some inside your vagina-mouth as well. Surprisingly, it doesn’t actually bother you even though it seems to taste as it should (a statement even you are disturbed by). Still, it’s a bit extreme, so you take off the shirts and put them in the laundry basket again. You also make a big set of notes on the shirts and their combinations.
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Then, you go downstairs to the store again, to…