At first, you debate trying different methods to keep your human form while showering; maybe wearing a bathing suit, or would something as simple as a choker work? But you shake your head. From what Priya said, you could get some control of the suit's powers by figuring out what they were, and the less you allowed said powers to show themselves, the longer it would take to get any semblance of control. Maybe there would be a way to hide the weirder parts of the suit if you understood the way it worked. There would only be so many opportunities for absolute privacy, and let's face it, the shower was one of those times and places.
However, after you remove your clothes, allowing the suit to spread and your tail to pop out, you nearly reconsider. Showering in this form would be bad enough, but why did it have to be so hairy? It would take forever to get the fur washed properly, not to mention dried. And that tail...
Nevertheless, you press forward. Remembering Priya's suggestions, you reach down and gingerly try to remove the jumpsuit part of the costume, and to your surprise and shock, it comes off easily, revealing the rest of your very strange body. You have clawed paws for feet, and your leg bones are extended and strong, like most animals. Your calves and forearms have small quills on them, similar to that of a hedgehog. But it is your torso that is the strangest. While your head and extremities are mostly furred, including your tail, a large portion of your torso is made up of shiny reptilian scales and thick hide like that of an elephant or rhinoceros. It's like some bizarre armor protecting your vital organs. You run your clawed hand across it in awe, confirming its sturdiness. While there is no outward evidence of gender, it appears that you still have something akin to a cloaca down below. Not that you ever intend to use the toilet in this form.
"Being scaly all over might feel weirder, but at least washing up would be easier," you growl to yourself in your guttural voice, wrinkling your muzzle and giving the mirror a snarl. Annoyed, you look away, but at that moment you feel something strange, like an electric tingle washing over your skin. You look up in surprise and nearly screech in shock at your change in appearance.
Where once you had varying textures across your body, you were now covered in the scales which were previously only scattered across your torso. Your distorted body shape had not changed, and you still sported a slight muzzle, but now you looked decidedly lizard-like, right down to your once-furry tail. Getting over the terror, you wonder just exactly how you made this happen. You debate trying to change more, but realize you might not figure out how to do it again. Instead, you quickly get in the shower, hoping to finish washing up while still hairless.
Getting out of the shower, you towel off easily, considering most of the moisture just runs off your scaly body. You stare at yourself in the mirror and try again to change your form, but for some reason, it just doesn't seem to be working. When you're just about to give up, a wave of exhaustion slips over your, and when you look back up at the mirror, you are suddenly your furry/quill-y/scattered-scaly self. Breathing heavily, you wonder if changing your form saps your energy.
Too tired to think any further, you pull on your jumpsuit, then your pajamas, then crawl into bed. You fall into a deep sleep, which should have made you well-rested, but your mind is too jumbled the next day at school for you to take advantage of it. Through all your classes, you debate whether to actually go to the Superhero Club or just pretend it never existed. Finally, the last bells rings and you pack up your backpack.