"Thanks to this marvellous formula, you are now female, and I male, and I'm going to enjoy this!" said Mark.
"No, I'm not going to stay like this!" shouted Jessica.
She grabbed for the nearest vial and drank it down all in one go. Then, she looked dismayed at the lid. It was the male to femaae mix!
No longer with any masculine features to work on, the potion got to work making her still more feminine.
Her curves accentuated, her breasts swelling to a new firm DD cup size, her hips widening, legs getting shapelier, her lips fuller.
A hunger, a yearning crept all over her. She was desperate, she needed something...