Jed watched as the busty young woman walked upstairs, and waited for the door to her room to close before he hurried back down to the basement.
A few moments later, Melanie walked into her new bedroom, dropped her bag on the floor and pulled out a towel. She headed straight for the bathroom and ran a nice hot, soothing bath. As the tub filled she took off her clothes, and minutes later she was relaxing in the tub with her eyes closed and a content smile on her face.
Jed had meanwhile hurried back to the basement and begun to gather up his magical supplies. Then, when he heard the sound of the water filling the tub, he began his spell.
Jed began to recite the incantation from one of his more unusual books. "With magic and spells and enchantment and power, I change this woman's form, from hour to hour, her body, her flesh and her bones, her blood and her soul, so this my will, so mote it be"
When he finished reciting the words Jed began to make some strange motions with his hands and focused on his target. He wasn't sure whether the spell would work or not. Effectively gaining complete control to alter another person's form whenever and however he wished was not an easy thing to pull off but this was his dream and he would never get a better opportunity than now. A perfect transformation target was lying naked upstairs, soaking in his bath and blissfully aware of his plans for her.
"Come on, Come on" Jed whispered as he felt his power flow and his magic connect with his target.
And then he felt something, a connection to the young woman upstairs. A new power over her. His magic had worked, he was sure. His new roommate, who he could still hear cheerily humming a tune as she splashed about in the bath was his to transform in any way he could imagine. Her body was his to reshape or resize however he wanted. He knew it was wrong, but Jed was no longer able to deny himself. By keeping his new plaything - Mel, was it? - contained in his flat with him nobody else would ever have to know about his strange powers and urges. He could quite happily perform every transformation fantasy he had ever conceived of on her he was sure. It is wasn't like she was going to come to any harm. Who knows, maybe she would even come to enjoy the experience of being transformed.
Jed couldn't wait to test out his powers, and there would be no better time than now, while she was still naked. He slowly and excitedly made his way towards the sound of Melanie's innocent and oblivious humming.