Jen reaches out her hand asking you to follow her in further. Your mind searches for a reason to say no, but the island has removed all traces of one. You take Jen's hand, letting her lead you further into the maze of mirrors and lights. The further in you go the more you can hear the pleasurable moans of patrons, obviously enjoying their transformations. Looking down at the ground you can see clothing, some even in shreds, discarded without a second thought. Feeling disorientated from the reflections you decide to focus on Jen, who is walking in front of you. You notice a tail push itself out from the top of her skirt, slightly ripping the fabric.
You notice the more prominent use of hay on the path before you, eventually finding that the entirety of the floor is now covered in it. You can hear Jen begin to moan, she too enjoying her change. You raise your nose in the air and can smell a heavy musk that reminds you of a barn, however you also can't help but feel slightly aroused. You feel your shaft begin to harden, however it feels different. Before you can investigate further Jen stops dead in her tracks. She takes off her torn skirt and discards it now standing in her underwear and a tight shirt. You look at her panties and can see that they are visibly wet, the musk emanating from them invades your nose making your penis grow even harder. Jen grabs her soaked underwear and bends down to remove them, tossing them away like garbage as they hit the ground with a splat.
You can now see Jen's naked ass, taking note of the changes that it had undergone, the most prominent of which was the location and size of her vagina, not only had it darkened and grown considerably to take the full length of a Jackass' member, it was now located directly below her anus, a position much better suited to her soon to be species. Along with this change her ass had grown considerably larger as well as her tail having fully grown in, now swishing back and forth in joy.