You look down at your new mate.
"I hope you enjoy your new form." she says, with a seductive tone. Because you're now half tiger, it doesn't strike you as odd that you can now understand her.
"You're lucky that I chose you," she continues, "most humans never get to experience something like-"
She stops short. She's looking down at her front paws. There's something new on them- thumbs!
It suddenly occurs to you that while her Tiger spirit was flowing through you, transforming your body, your human spirit was flowing through her!
Her changes continue as her torso undergoes a drastic change in structure, developing the general shape of a voluptuous human female. Her legs change position, making it hard for her to stand on all fours.
She stands up on two legs. Her legs remain digitigrade, but she is now bipedal. Her front legs begin to change, taking on a structure more like human arms. Her front paws become more dexterous, which combined with her new thumbs lets them act as human hands. Her neck begins to shorten and change, until her head is positioned like a human head would be. Her feminine parts take on a human shape as she develops a sizeable rack where she previously had no breast structure, and her vagina moves forward to in between her legs. Aside from these changes, she keeps all of her tiger features.
Your new mate is now a beautiful, sexy hybrid of tigress and human.
"I hope you enjoy your new form." You tell her.
"If you would like, I could help you enjoy that form even more."
"I would definitely like that," she says, as a seductive smile spreads across her face.
You move towards her, and she offers herself to you.
You lose track of how long you spend making love in your new forms, right there in the middle of the zoo.