The suit was an extremely dark purple, almost black. It was a bit odd though, as it had gloves and shiny dress shoes, as well as the tie and jacket, incorporated into it as a single unit. The shirt was almost white with a slight lavender tint, but the rest of the suit, including the tie, was the aforementioned extremely dark purple. Brian looked at it, confused about how to even put it on as the shirt didn't have any buttons under the tie, but he realized there was a slit down the back of the jacket.
"This is kind of weird," said Master.
"Try it on," you said, "It'll be perfect for you!"
He shrugged, still groggy and out of it, and started putting it on, still otherwise naked. He struggled with the shoes a bit, but eventually got it on. It was rather ill-fitting on him. Far too tight around the stomach, very loose around the shoulders, and it was about six inches too tall for him and his arms were swimming in the sleeves. The slit in the back was hanging open and you slipped up behind him, ran your hand up his back, and sealed him inside the suit.
"Are you sure this is right?" asked Master, moving his hands around in the sleeves and making the gloves flop around. "This material feels really stra-" He cut himself off as the suit began to squirm. He grimaced, but didn't seem to be able to make a sound as his arms and legs extended to fill out the length of the suit, his stomach sucked in, and his shoulders expanded. Very quickly, he had acquired an impressive muscular build that the suit made look even better. His face changed too, thinning out and gaining a chiselled, rugged look, as his skin gained a very slight lavender tint and his hair went from being blonde to a shade of purple just slightly lighter than that of the suit. His skin also gained a slight sheen as his eyes turned a rich, vibrant royal purple.
He looked at you and smiled. "Thank you Sapphire," said Master, "I feel much more like myself like this. Such an improvement over my former self. I feel like I could walk into any business and just take over!" he laughed, "It's not like any normal humans could resist me, after all!"
You laugh with him, as he pulls out an ornate phone and begins researching the various businesses in the area, his use of gloves and his plastic skin not impeding his ability to interact with it at all.