My eyes suddenly change from their murky green color to a dazzling sapphire.
"What the hell..." I mutter as I get closer to the mirror, trying to figure out if it's a trick of the mind, when I double over to the ground, as if I had been punched in the stomach. I grunt loudly and reach to pull the door to the dressing room closed, before I try to situate myself up against one of the walls, my torso feeling like it's ripping and contorting. I look down to see my small ridges beginning to stretch the fabric on my stomach, and my eyes go wide. "What..." I say between deep breaths as I look to see my scrawny right begin to fill out the costume, pulsing and lengthening as expands, a deep tingling sensation taking over as it begins to become defined, my biceps pushing out and stretching the material. I turn to my left arm and catch the same thing happening before looking to the mirror with a horrified face.
Suddenly I hunch over again as my chest heaves slightly, and I attempt to push myself up from the floor using the bench. I get myself up just in time to catch my formerly flat chest begin to shift, becoming square and firm as a crevice forms between my two...
"Pecs?" I say aloud before looking down to see obliques framing my brick-like abs, no longer a six-pack but now an eight, my legs shaking as mass begins to build up on my thighs. I shudder as I see the previously unseen bulge in my crotch expand outward slightly and glance a bit farther down, my lower legs bulging out from the costume between heartbeats. I slowly reach down and touch the back of my right leg, shivering slightly as it's still shifting and growing under my fingers, becoming powerful like a runner's legs... powerful like The Flash's legs... and I bring my hand up, trailing my powerful thighs and thick abs, between my firm pecs up to my shoulders and then over my right arm, hard biceps and forearms stretching the material...
"Oh my god." I say as I look to the mirror, the tingling moving to my face as it reshapes slightly, my jawline becoming more defined, before the world falls eerily silent. The tingling fades away, and there I am. I'm... "The Flash?" I say under my breath before a knock on the door is heard. "Bro? You in there?"
Shit... Erik. I can't let him see me like this, but how do I fix it? I look around the room, expecting to find something to solve my problem, when the door opens. Shit. I forgot to lock it.
"Whoah bro! What happened?" Erik asks with a smile on his face. "You look like The Flash!"
"I..." I look back to the mirror. "I think I am The Flash..."
"What? What are you talking about..." Erik opens the door completely wide.
"Feel this!" I say as I turn to him and flex my right arm, my bicep bulging out from underneath the fabric of the costume.
"Uh... okay.." Erik walks inside of the dressing room and touches my bicep, and flex it a little more. He pulls his arm away and steps back with a confused look.
"It... feels real..."
"I think it is real, Erik... all of it..."
"So... what... that costume like... changed you or something? Shawn... that's fucking crazy..."
"It did! I fucking swear! Go put on yours! It's on the counter!"
"Alright..." Erik walks back out to the counter. "Thor?"
"Yeah, try it on..." I walk out of the dressing room. "I think that these costumes are more than just outfits."