"Okay, just for you to know, this is going to hurt a lot." Kat said
"Your kidding me, you have to be." Dan said laughing nervously, but suddenly there was a crackling sound and Dan fell to the ground screaming. Dan's bones were shifting, and his body was expanding at an incredible rate. Dan's hands and feet became black 3 digit claws, and each claw was roughly 1 foot long. Dan's face pushed out into a muzzle and his eyes became slitted, and he grew deep blue horns out of the back of his head. Then a tail pushed its way out of Dan's body right above his ass, and spikes grew from it and up his back that reached the back of his head that matched his horns. Dan then grew wings that sprouted out of his shoulders, and when he screamed it sounded more like a deep and powerful roar.
"YOU LITTLE BITCH!!" Dan roared in rage his voice extremely deep and booming
"Whoa calm down there, the worst part is over. The only things left are your scales, and a few smaller more necessary features." Kat said as Dan began sprouting blue scales all over his body.
"Why are you doing this?!" Dan growled
"Because it's tradition, as I said our family has more transformation magic. You should be thanking me too, dragons are said to be superior to humans in almost every way." Kat said
"I don't have thumbs." Dan said unamused
"I said almost, now can you please just stay quiet while your transformation completes itself?" Kat said
Dan suddenly got a surge of pleasure, and he looked down to see his cock was enlarging, and it was throbbing while it did so. Dan had lots of urges to orgasm but held those urges back, that is until his dick split in two and both halves formed two separate dicks. Dan roared orgasming and spraying his seed onto the floor of the cage, and then looked down to see his cocks. Each cock was 1'6" long and had the width of a golf ball. Dan's testicles were hidden under a sheath beneath his new scales, and his cocks retracted into that sheath seconds later. Dan hardly noticed that during all of that, that his teeth were now carnivorous and razor-like, and his tongue was forked.
"All done, now what do you have to say now brother?" Kat asked
"I...I I have barely any words to describe this. But I feel different, in a mental sense." Dan said
"Dragons are said to have far greater intellectual strength than humans." Kat said
"Well if that's the case then not having hands is really the only thing holding me back. But what do I do now?" Dan asked
"Well, we are going to our great grandma's old house and that's on another world. We will live there from now on, and she gave me the deed, and everything that I need there to help me prosper in my magic in her will. You were given the cave inside the cellar, it's certainly roomy so you're going to fit no problem." Kat said
"Wait, I thought she left you and me some of her money in savings, when was this?" Dan asked
"Well turns out traveling to two different worlds means that you can have two different wills. It's morbid in a sense, but we can make things work there. If you want I can teach you some dragon magic if there's a spell book there about it." Kat said
"If there is a book then I would like to do my learning privately, nonetheless I will take up that offer on the basics of magic." Dan said
"Why are you talking like that?" Kat asked
"Like what?" Dan asked
"Like all of a sudden you are using larger words that you would never use." Kat said
"Dragons are more intelligent than humans. But I still have no idea what you are referring to." Dan said
"Here, let's just go before mom finds us here, or that there's a puddle of dragon cum on the floor." Kat said and a portal looking thing appeared on the far wall, and she unlocked the cage.
"So we're just going to abandon our current lives?" Dan asked
"You are a dragon now permanently, I don't think that you can exist on Earth without the government getting involved. That and is our lives now REALLY that exciting to not try this?" Kat said
"Fair points, alright let's go sis." Dan said and walked into the portal, and Kat followed shortly after