Kelly is a completed TF/TG game created by alburn for the Magical Mystery contest.
You've returned from a camping trip to find ominous voice messages left on your phone by your missing girlfriend, Kelly. You find a mysterious amulet at your place of work, Ancient Wonders - a store selling old-looking things, mostly useless junk found at various archaeological digs. A being trapped within the amulet, a goddess, claims to be the only one able to help you rescue your girlfriend.
Chris is you, the player character.
Kelly is your missing girlfriend.
The link is for a different game!
Still one of my favorite transformations in all the games here. Love how you can rush to see the bad end or struggle against it to see the good.