Once in her house, Erika immediately checked on her husky Max to make sure he was okay, and fed him his kibble. Then she and Cole went to her room. Cole pulled the waterlogged book out of his bag and laid it open on the bedroom's heater, which Erika turned on so that hopefully the pages stuck together could dry and be salvaged.
Then Erika fetched the bottle of salve which had rolled under her bed and handed it over to Cole.
"This is what I found in the grassy field, and it made me like this" Erika said with conviction.
"I find it hard to believe" Cole sighed. "If science had made this possible, we'd know."
"Maybe this is experimental? Or maybe something very ancient on the contrary" Erika said in a small voice.
Cole examined the bottle quietly.
"To better understand what you've been through, I may have to test it myself" he finally said after a moment of reflection.
Erika shuddered. "Nooo don't do that! It's very troublesome, why would you do that to yourself? This is a terrible idea!"
"Look Erika, you're a girl, it's probably not having the right effect on you. Beside, I am more experienced with penises and erections, so I can handle this better."
Erika whimpered and tried to protest but Cole was already pulling his member from his blue jeans and boxer. Hitting the nozzle, he sprayed his groin abundantly before tossing the bottle on the bed.
"This is for science!" he said, a slight tremor in his voice betraying his outward confidence.
For a short moment, nothing happened save for a strange tingle on the skin. It quickly seeped deep in his flesh though, a feeling he wouldn't quite describe crawling in his guts. Cole's breath became shorter as the sensation rose from within.
There before his and Erika's eyes, his penis started thickening and hardening, big veins becoming visible. His balls looked swollen as well.
"Well, it doesn't seem so ba.. AAAHD" Cole yelped as a violent throb made him double in pain and fall to his knees. His foreskin retracted from his growing hard-on, gathering at the base of his cock, which was buzzing unnaturally as it enlarged before his eyes.
A swelling bulge appeared, molding itself into a typical canine knot, while Cole's glans became pointy and started lubricating abundantly; a transluscent thread of pre escaped the tip and reached the floor between his thighs.
Another violent throb made Cole unvoluntarily thrust his hips and he found himself on all four, panting and clenching his fists on the bedroom's carpet. His cock had grown to an enormous size, Erika noticed, larger than her already impressive member.
Most of all his balls too had swollen ridiculously and barely fit between his legs anymore; they too were covered in a soft creamy fur which had also replaced Cole's naturally dark brown happy trail.
Helpless, Cole grunted between his teeth as his huge canine member began shooting rope after rope of cum on the carpet and some on his jeans. Far from ending there, the climax intensified and turned into a continuous stream of cum oozing from his pulsating cock as he moaned huskily.
A minute passed and Cole could finally catch his breath, sitting back on his knees to look at the mess he had made. His softening canine cock tilted on one side, until the sheath lengthened into a human one again, covering the strange sight. His testicles failed to deflate past a certain point, remaining both furry and larger than average. On close inspection, his package was only superficially human.
"Fuck, it's real" Cole finally said with a weak voice. He looked a little pale.
"I told you, this isn't a joke" Erika replied, crossing her arms over her chest. Her face was a little flushed; she realized she felt a little moist between her legs, and had been subtly rubbing her thighs together unconsciously at the sight of Cole's cock transformation.