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Dr. Harold Ng could do little as he watched his co-researcher writhe on the floor. Her body was changing. He could see it plainly due to the skintight protective suits they had to wear in the lab. There was little he could do but watch, as opening the lab would risk contaminating the rest of the building -- if not the world.

She should be okay, but she probably won’t be happy when it’s all over. Dr. Susanne Collins had been quite an attractive woman, but the particles they had been researching were changing her into a rather homely man.

Harold was going through a similar process -- although with none of the pain Susanne seemed to be experiencing. Of course, Harold was going from male to female instead. He was becoming quite voluptuous. He was glad the suit seemed to be stretching properly as his bust expanded and his hips widened. The last part that remained for them both were their genitals. As Harold’s male organ gentle receded into folds, Susanne found herself with one shooting out of her as she winced in pain.