The rush of erotic feelings flooding through Josh only seems to intensify as his balls begin to ache. "Oh fuck, what now?" Josh thinks. The aching somehow amplifies the other feelings. Josh's body overflows with testosterone. He feels a building in his balls.
"Oh, I'm gonna cum. Oh fuck. Oh shit. I'm gonna cum while this guy is watching. I'm going to cum as I turn into a pig," he whispers to himself. "I'M GONNA CUM!" he squeals as the pressure in his balls builds to a breaking point. But he doesn't. Instead his balls seems to absorb the pressure, compensating for it by growing. They swell outwards. He watches as they expand, becoming the size of golf balls, then kiwis. "What...the...fuck?" he pants. His balls are now the size of small potatoes, and they're continuing to grow.
But something else is happening as the piping in his ass continues to pump the weird goop into him and the vacuum on his cock continues to suck. A web of skin is building up around the base of his cock. Josh had been circumcised, but now it looks like his foreskin is reappearing around the base of his cock. He stares in wonder. A thin web of skin begins to attach it to his abdomen. A sheath! He's growing a freaking sheath! Josh knows that when his cock is flaccid it will retract into the tube of skin. Just like the animal he's becoming.
Ted continues jerking. When he sees the sheath, he laughs, jolting Josh from his reverie. Josh had almost forgot his kidnapper was there, so absorbed was he in the pleasure and changes wracking his body. Ted shouts, "Looks like the changes are speeding up!"
Josh looks down at his package. Sure enough, his balls are now larger than oranges. They press against the inside of his thighs. At the same time, his cock is twisting and growing outward. Josh gasps. It LOOKS like it should hurt, but instead it only causes another wave of pleasure. It's like someone's giving him a hand job at the same time the tube is giving him a blowjob. The pleasure causes him to squeal again. "I don't know how much longer I can hold out!" he moans to himself. His cock stretches outward, barely recognizable as human at this point. It's a thin, 10-inch-long corkscrew now.