"Wow, it's all spongy," Leon was absorbed by his own body, running his squeaky fingers up and down his smooth form, and squeezing his hard cock between his thumb and fingers. He started sliding his hand up and down it, letting out a little squeak every time he brought his hand back.
"Yeah," Jung grinned. He didn't get up, but just leaned back on one hand, spread his legs, and gripped his own cock, stroking it slowly, squeaking softly. "Feels great, don't it?"
Leon looked away from his own groin to glance at Jung. "Yeah," he moaned. "Fuck, I'm gonna cum..."
You watch Leon's hips buck a bit, but nothing comes out the sealed-off end of his rubbery dick. Instead, the whole thing just seemed to balloon up for a moment, then resettle into its previous shape.
Grinning yourself, you stand up, taking your own cherry-red cock in hand. Eric puts a hand on your back and shakes his head "no," then nods back in Leon's direction. You look back over to see Leon, even after cumming, is still jerking his orange rubber dick, and Jung's arms are a bluish blur. The rubber's begun creeping up onto their heads, now, too.
You're not sure why Eric stopped you, but you sit back down to watch. Absentmindedly, you move your hand to your dick, but as soon as Eric sees you, he pulls your hand back off. "Not a good idea. Watch."
Jung and Leon both are leaning back on the deck of the ship now, jerking like crazy. You see their cocks continually ballooning up, stretching out, then settling back into a dick-shape, but you notice that their cocks appear to be...growing? The orange and blue rubber was moving up over their heads and faces now as well, sealing their mouths shut.
Even though neither has any orifices to breathe through, their chests are heaving as they continue masturbating, until finally their cocks get so big they can't even hold onto them anymore. "Jung?" you ask, "Leon?"
"They can't hear you," Eric answers. "It's got its hooks in 'em, now. Nothing to do but watch."
Jung's and Leon's arms go limp, lying to the side of the two rubbery guys, their cocks still ballooning out and growing. "What's happening?" you ask, so turned on by whatever's going on, moving your hand back to your cock.
Eric smacks it away, harder this time. "No, dude, don't. That's what triggers it."
"What are you talking about?" you ask, trying to keep your eyes off Eric's green body, and that prong down there... You're getting hornier and hornier watching Leon and Jung, even as you notice their legs are shrinking...no, all of them is. All but their cocks, which are up to a good foot and a half by now, and as big around as one of your legs.
"All the Master's curses and spells and shit work on impulse, tempation - instict. The more you give in, the more you're changed, like with the guys getting drunk and turning into donkeys n' shit." As he talks you watch Jung and Leon. Their legs are getting shorter and shorter, pulling up into their bodies, and their cocks have become so heavy they're just laying on top, pointing straight away from their heads.
"I saw the Master use some once on some guys. It was just like this, they started jerking it and fooling around, until they were all just lying on the floor cumming like this," Eric explained. Jung's and Leon's legs were now just nubs, their cocks laying over them and leaning down to touch the deck. Their balls seem to have merged into the rest of them, you notice, or at least, you can't see 'em anymore. Their arms are now pulled into their sides as well, and each had his hands open, lying flat against their thighnubs.
"Can we help them?" you ask. "There's gotta be a way to stop it, right?" Your hand goes to your cock again, but this time you notice and pull it away.
Eric holds his hand up in front of Leon's face and snaps his fingers. Leon doesn't even seem to notice, and neither does Jung when you try it with him. "They're too far gone, now. The Master probably knows how to revert it, if it can be, but..." Eric's breathing heavily, the look on his face telling you how turned on he is. "Fuck, man, right now I'm just trying to keep from jerkin' it myself."
"Yeah, I know what you mean..." you agree, sitting on your hands to keep from touching yourself. You make it a point not to look down, but your dick is just begging for attention. "What are they...what are they becoming?"
"Looks like they're almost done," Eric comments, and sits on his hands next to you. Leon and Jung were just squirming a little now. From the bottom of their ribs on down, they were giant rubber cocks, bigger versions of their original equipment. Their arms were sealed to their sides, the rubber having merged together, gluing them into place. Their heads seemed sealed in place now as well, staring emptily to the sky with smooth shiny eyes. "See how they're shrinking?" You stare for a moment, and see that indeed, the two of them are getting smaller.
"They're turning into dildos?!?" you half-ask, half-realize. Your arms keep wanting to jerk out, and your hands are dying to wrap themselves around your dick. You keep trying to keep your mind off your cock, but it's getting harder and harder to think about anything else.
"Yeah, more or less," Eric answered. "The Master gives them to his friends. Sometimes you can find 'em in the souveneir shops, too, after a party or something." It occurs to you that that was likely your fate, had you not escaped the island. It also occurs to you it might still be, if you can't keep yourself from jerking it...