D.N.A. Switch 5

"Come in Sarah" said Dr Chan "please take a seat", he explained that due to a lot of flu going around he would be giving her an anti flu injection, and a thorough examination so could she please undress to her bra and panties, Dr Chan had examined many of Sarah's friends (Due to the experiments) so this didnt seem unusual.
 
Sarah's body began to change almost immediately after the 51% injection of the D.N.A from the male body builder, her bosom became flat and her abs took on the look of a professional body builder albeit a male bodybuilder.

Sarah's head, arms, hands and legs were unchanged, but her chest area was unmistakeably male, again Sarah seemed unaware that any of this was occurring, the 51% injection had begun to change the test peoples bodies, not just her mind.

Dr Chan was already looking forward to future experiments where he would increase the percentages even more, but still shy of the 100% because he felt that would be taking it to the point that he wouldnt be able to bring the test subject back to their "normal" selves.

It took longer than the Dr imagined for Sarah's body to return to her normal self, he had to give her another injection to keep her sedated until her body became female again, The Dr explained that Sarah had fainted and thats why she was still in his doctor office hours after she had arrived.

It wasnt until later when Sarah was talking to others that had been to see Dr Chan over the last few weeks and they began to compare experiences, they couldnt believe what they were hearing each of them told tales of wearing womens tights to having parts of their bodies changed to a different sex, it wasnt long until they realized just what the Dr had been upto, but before they could set a plan in place, they heard that a friend of theirs had had their baby taken to hospital with no signs of life.

They all rushed over to the hospital to find out exactly what had happened, they were devistated to learn that the baby had died of Sudden Infant Death Syndrome, or S.I.D.S. for short, it was then that Trevor came up with the perfect solution.

They got a sample of the babies D.N.A.