How To Get A Pet Bunny:
Step 1: Go into the woods and find an abandoned baby bunny or a hurt bunny
Step 2: Bring it in the house and ask your parents if your allowed to keep it on one condition, if you can take care of it and stay on top of its health
Step 3: Give it a name and some place to sleep (For the first day then go get a crate from the store)
Step 4: Love on it until your parents have no choice but to let you keep it because it go attached to you and you got attached to it!
For more realistic terms, For the first step, baby bunnies are usually accompanied by their parent, and it is very rare for them to be separated because the parent raises them until they are of age.
Step two, parents probably will not allow the rabbit into the house. It was in the woods and the animal is probably dirty. The parent's first move of action would be to ignore your begging and bring the rabbit to the vet or animal shelter.
Step 3 & 4, ref to step two.