Hermione Granger

Daphne grabbed the bag with the brown hair in it and opened it up, pouring said hair into the PolyJuice Potion.

Draco smirked, "I was hoping you'd pick her." Daphne rolled her eyes as she watched the potion change from a grayish mud to a bubbly blue liquid, which she sniffed and was happy to find didn't smell like sick. "Alright," Draco grabbed the first camera, "that'll only work for an hour, so we'll have to be quick."

"Got it," Daphne nodded before taking a deep breath and drinking the whole thing down. It didn't smell horrible, but it didn't taste great either. She moaned as she finished the last of it off and put the cup down, then felt her body start to change almost immediately.

Her ivory skin was growing slightly darker and she saw her hair begin to change colour, whilst also going from being straight to bushy and wild. She felt the rest of her body shift, mostly in the ass and chest areas. Daphne's tits had been one of her proudest assets, but now she could feel them deflating a bit as her bra felt looser around her. Meanwhile, her panties began to expand as her ass grew out and became firmer.

Eventually, Daphne felt the transformation complete itself and reached over for her bag. Taking out her makeup mirror, she looked herself over only to see an entirely different face staring back at her. The face of Hermione Granger.

"Perfect," Draco smirked. "If you weren't wearing your Slytherin clothes, I'd think you really were her."

Daphne quickly took off her outer robes and tie, leaving her in just her shirt, skirt, socks and shoes. "Alright," she turned to Draco, "how do you want me?"