"I happen to be in need of a shopping parter. Why not make YOU be that partner?" And as soon as Amanda said that, all of Ty's clothe vanished. "Don't worry, you will be dressed again soon. But before that, your body need some adjustment."
"I wish Ty's body to become an exact replica of mine, and nobody will find that strange, regardless of the fact they still see him, and only him, as his boy self."
Ty was starting to fear he wasn't the madder one. "A… Amanda?" And hearing himself say the mad-girl's name with her own voice was only adding to his discomfort.
Obvious to Ty lack of confidence, the natural girl said "I wish Ty to be able to dress in any kind of cloth he want without looking more girly than usual to anyone else."
"Amanda, please… ?" He then tried to make a wish himself. But alas, being physically indistinguishable to Amanda did not give him back his powers.
Still obvious to Ty's pleas, Amanda continued. "I also wish my clothes back, and to have similar clothing appear on Ty, undergarment include." The fact he now needed a bra didn't make wearing the thing feel less strange to him.
The boy-turned-perfect-lookalike-of-Amanda didn't care about his lost powers anymore, as long as got back to his now 'corrected' life at the end of the day, and the mad-girl didn't wish anything else until then…
Of course, Ty's hope were soon broken by Amanda's plans. "And finally, I wish that for now, and until the end of the day, Ty will now have clothing taste strictly identical to mines." Then, after a micro-second "Mh… That's not enough. I also wish that for now, and until the end of the day,Ty will move, speak and act like I will, and no one but me will be able to realize that he isn't acting like his usual self."