Choosing the lesser of the two evils, Isaac gives up and lets the witch remove his cock to save his life.
"Okay, but make it quick." Isaac says.
"Ooh boy I haven't done something like this in years!" The witch cheers before getting to work on Isaac's crotch.
She reaches down and holds the base of Isaac's shaft before weaving a strange spell on the base. After that, she begins slowly pulling the vine cock, causing Isaac to moan in pleasure. It feels like his dick is being pulled further and further away from Isaac's body before he feels a POP.
Isaac looks down to see the witch cradling Isaac's vine-cock and fruity balls, leaving Isaac with a perfectly shaven pink pussy below.
"I didn't know it would look so..."
"So normal?" The witch interrupted. "Yes, you now have a perfectly functional female vagina!"
As the witch started to walk away, she turned to warn Isaac. "If you are thinking of going into the crypts, I would be careful if I were you. The creatures down there will do far worse to you than out here. Not only that, but these sort of beasts much rather prefer their victims have a vagina than a penis. Heed my warning young man." The witch said before disappearing into the bushes.
Isaac was stunned by her words. "They would prefer their victims to be women.." Isaac thought to himself as he stared at his new genitals. He was lucky enough to be alive and not corrupted any more. "Noone will ever know I have a vagina between my legs anyways." Isaac thought before donning his armor and preparing a base camp outside the crypt entrance.
As Isaac slept, he could hear ominous sounds coming from deep within the crypt. He knew there was a great evil down within and he would need to be prepared if he wished to survive.