“And now we have a unique opportunity.” Mary said as she gulped down the content of the vial on her hand.
“Are you crazy?” Jeff shouted. “What if this thing is a poison?”
“Well, I don’t think someone would have that amount of work just to poison us. And I think that I… arrrrrgghhhhh!” Mary shouted as she felt a stinging pain on her ass.
“What happened?” Jeff was worried as he saw Mary fumbling with the zipper of her jeans.
Mary quickly unbuttoned her jeans and pulled it down. The pain on her ass was growing by the second, but as soon as she removed her pants, the pain subsided. She felt her ass and found something new.
“I don’t believe!” She said as she grabbed that new thing.
“What happened?” Jeff asked, almost frantically.
“It works!” Mary said as she pulled a one-foot tail from her back, showing it to Jeff.
“What is that?” Jeff was trying to understand that.
“I am growing a tail!” Mary said.
Jeff approached Mary’s new appendage and took a closer look. She indeed had a tail now and it had the same color as her skin. Mary released her tail from her grasp and it just hung down on her.
“Incredible!” Jeff said. “Can you move it?”
Mary concentrated and Jeff saw as her tail wiggled a little before going limp again.
“It is hard; I don’t know what muscles I have to move to move it.”
Jeff then noticed something.
“Hey! Your tail is still growing!” He said as he saw that her tail was hanging lower. It grew two inches in just a couple of seconds.
Mary looked back and moved her ass, so she could see what was happening. She was startled to see that her tail moved up suddenly.
“I thought it was hard for you to move it!” Jeff said.
“I thought so too. But when I tried to see it, it moved almost on its own.”
Mary then tried to move her tail again and this time it waved and snaked up like a cat’s tail.
“I can move it now! It is easy now!” Mary said, excited.
Then Mary smelled something different.
“What’s this smell?” She asked.
“What smell? I can’t smell anything!” Jeff said, as he smelled the air.
“It’s a musky smell, almost like…” Then Mary realized what that smell was as she saw the tent in front of Jeff’s pants. “Hm! I know what this smell is!” She said.
Then Mary wrapped her hands around her husband neck and kissed him deeply. She used her now two feet long tail to caress his manhood, which was almost bursting out of his pants.
“I think you like my changes!” She said softly on his ears.
Then she dragged Jeff to their room and removed her shirt and bra. When she was naked, she climbed the bed and stood on her knees and hands. She sashayed her tail on the air and made a sexy pose. Jeff could not wait any longer and removed his clothes.
As they started making out on the bed, Mary pinned Jeff down on the bed and climbed him. She kissed him passionately, while caressing his member with her two and a half feet long tail.