She closed her eyes and picked a random costume. She opened her eyes to see a dragon costume and thought "Well no going back now" She striped her clothes off her body and put the costume on. It made her feel sweaty and hot, then she felt a sharp pain from her hand. She looked at her hand to see her skin falling off and scales growing on her hands. She almost screamed in pain, but she didn't want to alert her mom. After the scales spread up her whole arm she felt a even sharper pain as her fingernails started to grow and sharpen. This caused massive pain to her and she covered her mouth to quiet her scream. Her skin continued to be replaced with scales as it spread to her chest. She looked at her tits as they grew in size. Soon her whole chest and both arms were covered in scales. The scales spread to her legs and feet where her feet became claws and one her toes moves to her side of her foot. She sheds a tear as her bones snap and move around. After both her feet had changed she felt a pain in her behind. A tail starts to grow, and she moans in pain as new bones grow and attach on her body. The scales travel to her face as her whole face is covered with scales. She feels her ears shrink and disappear as horns grow out of her head. Her hair starts falling out as she cries in pain. Her face starts to morph and turns into a snout. Her teeth start to inflict pain on her as they grow so sharp they become lethal. She thinks the pain and suffering is over but she feels pain from her back as her spine snaps and a pair of wings grow out of her back. The transformation is complete and she looks at her body, and groans. As she starts to feel the pain go away she hears a knock at her door and she hears her mom saying "Are you okay in there? It's been fifteen minutes and you still aren't downstairs." She hears a voice in her head that says "Be careful around people when you are in this state. A bite or sexual intercourse will make them like you. A female Anthro dragon, no matter the gender they will become like you. Also you are almost always horny and are also bisexual so you have to watch yourself around people."