Grunting hard, Sam wanked Joe's tail vigorously in time with the thrusts of his cock, his own tail jerking wildly in his shipmate's grasp.
And then the moment came...
"Ahhhhh...." Sam's balls were so tight. His whole body shook. "Ohhhh fuckkkkkk...." Arching his back, he thrust his enormous erection tight against Joe's own engorged cock, and let go with his huge, pent-up load.
His thick, white fluid erupted as if from a volcano, gushing hard and full. It was the most incredible orgasm he'd ever known, a climax so powerful that his knees nearly buckled. Again and again he came, emptying his balls into the confines of his shorts just as Joe's own load shot forth, blasting from his dick with the force of a firehose. Braying uncontrollably, his entire body shook as he creamed, and soaked, his white cotton shorts.
They came together and stopped together, clutching each other's sweaty torsos and grinning broadly, lost in a haze of post-orgasmic bliss.
Sam watched as Joe fell to his hands and knees, swished his long donkey tail from side to side, then rolled onto his back. Kneeling down, Sam slid atop him, their slick skin and spunk-soaked shorts pressed closely together.
"God, that was awesome!" Sam grinned with undisguised happiness. "What d'you reckon?"
Joe grinned back. "Fucking amazing!"
His hand reached up to touch his shipmate's ears. Like his own, they were now pointed and fuzzy -- and seriously sexy!
"So who won the bet, eh?" he murmured, transferring his hand to squeeze Sam's butt.
"Dunno," Sam replied, twitching his tail to brush Joe's hand. "I'd say it was too close to call."
"Suits me," Joe smiled. "I need every penny I got." Lifting his head, he nuzzled his fellow sailor's strong, half-grown muzzle. "So what do we do now?"
Pushing himself up to kneel astride Joe, Sam said, "Let's get cleaned up. There's a shower room next door..."
"Then what?"
Sam smiled. "We track down the others. See what this place has done to them!"
Joe laughed. "Yeah. I'd pay good money to see Mark Butler with a tail!" Mark was the handsomest guy aboard La Bianca. Fit and toned, his muscular bubble butt jutted magnificently in his white close-fitting shorts.
"Well, what are you waiting for?" Sam replied. "Let's get going..."
* * *
At that exact same moment, halfway down Main Street, Mark and his buddies Dean and Andy were entering a crowded saloon bar for another drink. None of them had any idea of the strange transformation that had befallen their shipmates, though here and there they'd glimpsed some very strange things as they roamed the Island's streets.
This is their 'tail'...