animal tf story sacrifice for a sister

for nate he would do anytihng for his ill sister as her birthday is coming up and all she wanted to see was a african elephant of both genders but when they go to a elephant sanctuary they find the male had just died but there is solution that they whisper to nate the owners who agrees but say it comes at a price they give him some water which has magical powers suddenly he walks into the elephant sanctuary and he suddenly changes into a male elephant which stuns his family his sister realises he did it for her and is happy and asks if she could change to which they agree as the siblings live together as elephants.