You make your way to the house of mirrors and go in. You see a lot of strange shapes for the mirrors, but only stop to look into one. It's an oddly-shaped mirror; it makes you look much taller than you are, and it curves your body so that you almost look like a teenager. After looking into it for some time, you turn away to check out some of the other mirrors, but stop as you feel an odd weight on your chest.
Looking down, you see something you didn't expect. The floor is further than it ought to be, and your view of it is obstructed by two breasts. Finding a standard rectangular full-length mirror, you examine yourself.
Looking back at you is a teenage lion-girl, looking to be about fifteen or sixteen years old. You are now about 5'6", with a curvy figure and moderate-sized breasts. Your borrowed clothing, which was a little too large before, is now uncomfortably tight. You rush outside in search of clothes that will fit your newly-matured body.
Just outside the house of mirrors is the entrance to the waterpark, and a man outside the gate is running a swimsuit stand, selling slightly low-cut one-pieces for ten dollars each. It seems to be your lucky day, as there is a ten-dollar bill on the ground a few yards away. You snatch it up and purchase a dark green swimsuit, then duck into the bathroom to put it on. It's the wrong bathroom, and you yelp and hurry next door to the ladies' room. It's going to take a while to remember that, you suppose.
In a brief minute, you're changed, and although you're less comfortable walking around in a swimsuit than a full set of clothes, this is the most clothing you'd ever get for ten dollars at a carnival. Looking in the mirror, you survey yourself. You have to admit that you're quite attractive, but your mind is already considering that from the perspective of a girl, and you feel proud of your lovely body. The somewhat low cut of the swimsuit displays your new cleavage nicely without making you look like an exhibitionist, and the overall effect is more of modest cuteness than modeling-goddess "perfection." Although you hadn't expected even on becoming female to be a teenage girl this soon, you have a feeling that you're going to enjoy it.