Amy looked down at the colorful spheres representing the life she had just taken from the nurse, a woman she hadn't bothered to learn her name before destroying her and creating Sam.
Picking up the fizzy blue one of intelligence, she infused it into herself without question. Amy didn't feel any different afterwards, but was confident the benefit would be clear later.
Of more interest, she picked up the reddish pink of the drained femininity. While she approved of the power of her lean, muscular body - she wanted to add back a few curves in a spot or two.
She started by infusing the stolen womanly essence into her chest. Fat expanded under her nipples, surging out quickly into an impressive pair of tits. The changes didn't stay perfectly confined, and with a pop, her shoulders narrowed slightly.
With the a fair bit of fluid left, she narrowed her waist slightly and gave a little more flare to her hips.
Amy called Sean over. She infused his face and throat. He quickly went past androgyny to a fully female face. She then used the device to add a little softness and womanly curves to Sean's hips and ass. She gave the new padding a sharp slap, which made Sean gasp. His voice was now feminine. This process was repeated on Marty,using up the last of Sam's essence. Amy felt an unexplainable desire to have them match.
On a whim, she grabbed the drained masculinity and infused a portion back into Sean's scrotum. His nuts swelled and bulged, and his cock added a few inches. She stopped when his testicles were the size of lemons and his dick (which was now rock hard) passed eight inches. Once again, she altered Marty to match.
She dumped the contents of her purse, which now seemed so useless and trivial, and stuffed it with the notebooks and the various unused essences.
Sean and Marty in tow, she left the room in search of Dr. Karanova. All three were nude, and twice in the halls they ran into other people in the building. The surprise of their looks and nudity froze the onlookers long enough for Amy to restrain and drain them. The two were quickly reduced to amnesiac teenagers, two more femboys as they were robbed of their masculinity, athleticism, intelligence, and age. Their extracted essences were added to the collection in her purse.
They found Dr. Karanova's lab, inexplicably located in the basement of the building.