Eruraviel
"Come on, it's a harmless operation! It's a once in a lifetime offer!"
She loosened her grip around her neck and cast polymorph on her. Jenn suddenly found her body morphing, her ears growing outwards into tips, something hot growing from her groin, and so much more in tune with the world of magic that had been opened up around her from her new senses.
Plus, she was really horney.
"This spell will expire in about an hour." Eruraviel whispered in her ear, leaning in and licking the sensitive tip. "Can't you feel how much this would bolster your talents and abilities? How much stronger you are?" Her purple eyes gleamed with intense interest.
Chris and JennJennifer didn't look all that different on first glance, other than the pointy ears and big cock and balls hanging between her thighs now, forcing her to spread her legs a bit so she wasn't crushing them. It didn't stay dangling for long either, and the green haired apprentice was moving her hands down and whining softly as she tried not to let it just stick out suddenly! "W-W-W-Wait a minute, how did you just c-change my body like this?!"
It was easily going to be long enough to go from the elbow to the wrist if you compared an arm's length with it.
Christina gaped as she saw that massive bulge emerging beneath her apprentice's outfit. She then abused her ability to float to observe the transformation from multiple angles, turning sideways and upside down to look, which just made Jenn blush harder and shout," M-Master, stop that!"
"I can't, I need to make sure she didn't take away from my apprentice's cuteness!" Then she grabbed hold of Eruraviel and tried to pry her off so she could observe the back, too. "Or hurt you! Either of those!"