He can't

Before Andrew could say anything, Vanessa pulled down his scrubs and underwear, releasing his 6" cock and started sucking it. Andrew involuntarily closed his eyes and moaned as he felt the mature doctor's tongue lick and play with the head of his cock before deepthroating him. This wasn't Andrew's first blowjob, but Vanessa's mouth felt so much better than any of his past experiences. A small voice inside his head was screaming at him that he should stop this madness, however it was fighting a losing battle against a louder voice that was telling him to let go of his worries and inhibitions and enjoy the moment.

Suddenly he felt Vanessa's mouth let go of his cock and she stood up. This made Andrew open his eyes, disappointed that the pleasure stopped but he felt his cock harden even more when he saw the woman in front of him.

Gone was the short, unappealing, woman that was past her prime. Instead he saw what could only be described as a walking sex dream. He saw two toned, long legs, wide hips and a big ass barely being contained inside her skirt. Her formerly flabby stomach was replaced by tight abdomen that should have taken months of intense exercise and diet. Her small breasts have swollen making them almost spill out of her top, giving Andrew an exciting view of her cleavage. And then he saw her face. She now looked at least twenty years younger, all her wrinkles and blemishes were gone and her lips looked big and soft, perfect to suck cock.

Vanessa smiled when she saw Andrew's reaction and she licked her lips when she looked down and saw his dick grow even larger. Now it looked at least 8" and was still growing and getting thicker. She also saw how he was growing taller and his soft, untrained muscles were starting to grow and look more defined.

Andrew stood frozen as Vanessa started to slowly walk towards him and she put her hands behind his head. He could feel her soft breasts pillow against his chest and his enlarged dick rest against her midriff section.

"Dr Chen! Something is happening to us! We need to lockdown the ER, maybe even quarantine the entire hos-" Andrew managed to use the last of his willpower to try to make Vanessa come back to her senses, however Vanessa was far too gone to listen to him and instead shushed him by putting one of her delicate fingers against his lips.

"It's ok Andrew~ None of that matters anymore~ I can hear His voice inside my head. I can finally be free thanks to Him. And soon you'll be able to hear His voice too~ " Vanessa whispered seductively in his ear and gave Andrew a deep tongue filled kiss.