A dinosaur-loving three-year-old froze in shock on his driveway when his parents walked a "real-life" T-Rex towards him into his birthday party. Casen Fontenot's jaw immediately dropped once he saw his family members walking alongside the giant dino towards him – a reaction that quickly went viral on social media. Rather than opting for one of the mass-produced T-Rex costumes that have become popular in recent years, mom Daisy rented an entire "Dino Experience" – meaning the T-Rex was far more realistic and looked like something out of Jurassic Park. As the dinosaur came closer, held back by a chain, Casen's frozen reaction turned to jumps of joy, as he leaped up and down with delight. The moment took place at the Fontenot family's house in Baytown, Texas, on March 6. Casen's love of dinosaurs started when he began imitating them, Daisy said, and he is constantly seen running around their house trying to be one. So for her son's birthday she knew she had to plan something special – though she did admit that she was initially hesitant that the rented T-Rex might look a little too real. All those worries went away, though, when the family saw Casen's reaction. Daisy's family captured the moment on video, and having shared the moment on social media, the post soon went viral because of Casen's wholesome response.