Definitely, but take it easy on her

Your head tilted to the side as you contemplated what to do with Vanessa. She stayed silent, looking back at you and trembling pathetically. You sighed. "Okay, Vanessa, I'll play nice."

Her eyes widened a little more at that, looking hopeful but cautious. Her gaze flickered down to her newly-impressive valley of cleavage. "R- really? You mean...you'll undo this? I can go back to normal?"

"Oh, hell no!" You shook your head adamantly. "That body is nothing but a net positive in the world, definitely not getting rid of it. I just meant I'm not going to make your part of Nakamura's punishment much meaner."

She clearly wanted to pout about that, but realized the potential trouble she was getting out of and nodded resignedly. "Um...okay. Th- thank you."

She started to head back to her seat, but froze again when you held up a hand. You smirked playfully at her, gesturing at the silently watching Professor. "Now, now, I didn't say we were done. I'm just not going to be too rude about it." She quailed, and you tapped a finger on your chin thoughtfully. "How to start, how to start... A-ha. Would you rather you were dressed like a cliche magician's assistant or a really slutty teaching assistant?"

She pouted, but said, "I guess I'd still rather look like a student."

Instantly, her clothes swirled around on her, stretching in some places, splitting in others, and shrinking almost everywhere. They rustled and whooshed and she gasped, trying in vain to cover herself up as her tiny-but-impressive body was put on display. Her concealing sweater and simple jeans morphed into the almost-obligatory tartan skirt and tied-off white blouse. The top was so sheer that her expanded tits were more outlined than hidden, the outline of her dark nipples clearly visible, and the skirt just barely made it below where her panties ought to have been, if she had any. The plain black flats she'd been wearing suddenly sprouted towering heels and shimmered into clear plastic, and the ankle socks underneath slid up her thick calves and just onto her thighs, well below the far-too-high hem of her skirt. Her dark hair swept itself up into loose pigtails, and with a little 'ding', thin silver glasses appeared and dropped onto her nose.

She looked down at herself in shock, only barely even trying to cover herself anymore, the effort clearly an exercise in futility. You whistled appreciatively and she started, apparently having almost forgotten anyone else was even present. Finally, she just buried her face in her hands, but even that failed to hide the cherry-red hue of her blush.

You blatantly surveyed her up and down, pleased with your handiwork. "Very nice, if I do say so myself. One last thing before we get back to the Prof, though - no, I haven't forgotten about you, Nakamura. Vanessa, I can't have my assistant trying to hide or run away the rest of class, so let's make this a little easier on you. Would you rather be totally comfortable being my assistant until I say class is over, or become enough of an exhibitionist that your new outfit just turns you on?"

Hurriedly, she blurted out, "Until class is over, please!" And then she suddenly relaxed, an almost languid smile coming over her face. She stretched and leaned on the podium and ran a hand up her cleavage, grinning over at you and Nakamura. "Okay, boss, I'm good. What's next?"

You grinned right back at her. "An excellent question. Class? Who wants the next crack at Nakamura?"