You and Indominus Rex was born in the same year, though I-Rex or Indominus Rex was hatched. You both saw each other and became friends as babies. I-Rex is made of primarily made from the DNA of a Tyrannosaurus Rex and Velociraptor, with additional genetic material from various other dinosaurs and modern animals. Key dinosaur species used include Carnotaurus, Giganotosaurus, Majungasaurus, Rugops, and Therizinosaurus. Modern animals like cuttlefish, tree frog, and pit viper were also incorporated. Now, Indominus Rex was 50ft tall, and a teen dinosaurs, you are a teenager, you can control her. One day, you got her out of her cage, and you two did evil stuff, so you two became villains together, a very strong duo, I-Rex is very intelligent and smart, you just say the evil stuff. You two got to control Owen's raptors, and I-Rex became their new alpha. You are on I-Rex's back, she doesn't care if you are on her back, for her you weight nothing.