Jake's mind was racing. He could feel Sparky sniffing at him, growing more and more persistent. Jake tried walking more quickly, but Sparky kept pace. He was blushing profusely now. He could not wrap his brain around what was happening. This was alarming. This wasn't normal, right? He couldn't just... do whatever it was he was wanting to do in the hallway. They... they had to get to the courtyard. There was safe. There was okay. For what, Jake really couldn't determine, although he felt like he should.
Sparky suddenly growled. Jake resisted the sudden urge to drop to the ground. He shook the leash and sent a look at Sparky. No, not yet. Somehow, the Golden Retriever seemed to get the message, even though Jake didn't quite understand it himself.
They finally reached the courtyard. It was a square plot of grass with only one door and, thankfully for some reason in Jake's mind, no windows. They would be completely alone and secluded out here. He knelt down and removed the vest off of Sparky. Sparky stepped back and panted. His tail wagged behind him. He slowly approached Jake, pushed his nose into his crotch, and sniffed.
"MMhmm," Jake bit his lip to hide the moan. His dick throbbed, his pussy ached, and he let go of both the door and the leash. He fell to his knees and saw it, Sparky's hard doggy dick. This was it. He finally figured it out. His pussy was in heat, and it wanted Sparky's dick just as much as that dick wanted his pussy. Sparky started licking Jake's crotch as he fumbled with the jeans. He couldn't fight these urges. He knew, deep down, something was completely wrong about this. But he didn't care. He needed that hot sexy rocket inside him. Nothing else mattered.
He removed his pants and boxers just as Sparky tackled him to the ground. Laying on his back, Jake could feel Sparky growling slightly until the dick pushed inside his pussy.
Memories of the phonecall earlier that morning came rushing back to him and with them, a torrent of pleasure. He moaned and groaned as Sparky thrusted into him again and again. He had a canine pussy with a canine dick inside it, and while he was secretly horrified by what was happening, outwardly he was loving it. The pleasure overrode any sense he had. He kissed and licked Sparky's face, feeling his mate growl in response. His body hummed in time with the growling. He could feel himself getting closer and closer to orgasm. His cock was leaking everywhere, forgotten and ignored. He threw his head back as he felt the final seconds before his first female orgasm approached.
Jake was lost to the pleasure. He had been cursed to be like this, to be a helpless, needy, slutty bitch. And he equally hated it and loved it. He could feel himself getting closer and closer to his climax. But a deeper part of him wanted to be wrangled, to be manhandled, to be fully subdued by his mate. It just wasn't possible with Sparky... as he was now.
"Oh God!" Jake moaned. "Sparky, Transform or Dare!" He felt the penis inside him slow slightly before ramping back up, almost like it was getting ready to knot inside him. Jake, to his own internal screaming horror, hoped that was the case. He couldn't count the seconds while in pleasure, so he began to speak, "Sparky, you will turn into a hot, sexy, muscular 18-year-old human with a big, thick dog's penis perfect for me. Nobody except us will remember the old you. You will be my sexy boyfriend and mate. But right now, you won't cum inside me until you finish transforming. Now, fuck me hard, Sparky!"
Jake opened his eyes and stared into Sparky's muzzle. It pushed back into his face, and his ears lost the floppiness and shrunk. His nose turned pale as the fur on his face faded away. His brown eyes shifted to blue. In seconds, his head was completely a human head. The changes continued to spread down his neck. The fur faded away from his body as his tail retracted into his ass, which blossomed with muscle. His shoulders spread out and away, becoming firm boulders for his big arms to plant themselves on either side of Jake.
"Wrorwow!" Sparky gasped. His eyes lit up as he looked into Jake's eyes. He fucking smiled at Jake. He leaned in and kissed Jake, sticking his tongue deep inside Jake's mouth. Jake closed his eyes, feeling the rest of Sparky's body change from dog to human. Except the wonderful dick inside him, which began hitting Jake deeper and deeper.
"Here I come!" Sparky gasped, speaking his first human words.
"Do it," Jake begged. "Come inside me. Fill me up!" The knot of his dick flared, joining them together as his dick unleashed inside Jake. Jake kissed Sparky again, moaning into the kiss, as his pussy orgasmed for the first time. And before Jake could do anything, Sparky suddenly grabbed Jake's own hard 13-inch dick, pumped it a few times, quickly making him explode against their chests.
Jake laid his back on the ground. He was breathing deeply. His tongue felt strange as it suddenly began filling his mouth. His lips opened up as his wide, long tongue flopped out to the side. He panted, not really caring that he now was a proud owner of a dog's tongue. He was more than satisfied with this.
"I'll be honest," Sparky said. "This wasn't what I expected to happen when I cursed you this morning."
Jake frowned. "Huh?" He sat up and looked into Sparky's eyes. He realized he recognized them. "Kyle? Kyle Perkins?!"