You decide to take your chances with the mangoes. You couldn't think of any animals that liked mango, and assumed it wouldn't be too dangerous. You bit into the mango, and the sweet flavour of it filled your mouth.
It was perfectly ripe and juicy, and you didn't want to stop eating it. Meanwhile, the juice began to change your mouth. Your teeth grew longer and more pointed, forming two tiny yet sharp fangs. You didn't notice your new fangs, and kept eating.
Your ears began to shrink further into your head, until they disappeared. You didn't notice this loss in sound as two new pointy ears began to rise up on the top of your head. They were black, with a little bit of brown fur on them. They twitched, their hearing much greater than your old ears.
The hands holding your mango began to grow little claws on them. They ripped into the mango's flesh, and the juice ran down them. From your arms grew leathery wings, that got longer and longer until they were big enough to cover your whole body.
You were now half fruit-bat, with giant leathery wings and great echolocation. But you were only half finished your mango.
You took another bite of the juicy fruit, and it began to change you again. Your dick was receding back into your body, pushing inside until it formed a nice vagina. You squeaked a little at the sudden sensation, but continued to eat.
Your flat, manly chest was slowly growing and becoming soft and bouncy. It glomped out, and you had a nice, large pair of breasts. They were abnormally huge, around H-Cups. They bounced with slight movements.
Your hair grew down to your back, before tying itself into two long twintails. The colour shifted to a light brown.
You finished the last bite of the mango, and finally realized you had transformed into a cute fruit bat girl.