"Here you go, sir."
Meekly said the salesman as he handed the collar and the leash to Vandal. Nothing remained of his previous confident and domineering demeanour as he sheepishly looked towards Vandal and a small tent started slowly growing in his pants.
"I... I also thought you might like these, sir."
He said while extending a hand carrying a harness and a leather vest towards Vandal.
"Good job, I like the way you're thinking boy!"
Replied Vandal, his voice betraying some excitement despite its roughness, and immediately started fastening the harness around his chest. Right away a new growth spurt started spreading across his body, his already huge pecs grew a size bigger and covered with even more hair, which managed to almost completely envelop his new, thick, pointy nipples. His legs grew thicker and bulkier, making his feet feel almost constrained in the shoes he still had on. Finally a lustful groan escaped his stubble-covered lips as his already hard and sizeable cock swelled even further against the leather thong he was wearing.
Vandal was slightly alarmed by what was happening but didn't even have a chance to take in all the changes before the shopkeeper, slipped the vest onto his shoulders and his body swelled up even further. Now instead growing wider as it covered with a small layer of fat and even more hair, especially around his face that suddenly sprouted a full, salt and pepper beard, giving Vandal the appearance of a power lifter in his forties.
John, terrified by what was happening to his friend begged him to stop and take all the leather gear off but was immediately silenced by Vandal, who was too turned on by the aftermath of the transformation to think about anything but all the other gear that the shop might have in store for him.
With each transformation his domineering aura grew even stronger eventually leaving both the salesman and his former friend as complete slaves to his will, ready to obey his every order without a second thought as they both scoured the shop in search of the items their master might grow a liking to.
After the tour around the shop was over Vandal started examining his new self in the mirror. He took a deep drag off the long, big ring cigar the salesman picked up for him and whipped out his massive, pierced cock and the two grapefruit sized balls out of the new XXL sized jockstrap which replaced the thong that John initially picked out for him to better accommodate his new size, and started slowly stroking himself. Admiring all the changes that happened to his body, the wild, grey beard that streamed from his stern looking face, all the way down to his round, tattooed gut. The black military boots going all the way to his knees and the tree-trunk legs that seemed to be almost ready to burst out of his old chaps. The long, pierced nips that crowned his enormous pecs and the gargantuan biceps, like the rest of his body, covered with a forest of grey fur, with thick leather straps tightly wrapped around them. And finally the worn out leather cap resting on top of his bald head, completing his daddy bear look.
Any memories of who he used to be or how he used to look like were buried deep within Vandal's mind, under countless perverse thoughts of bending other men to his will and turning them into his leather slaves who would satisfy all of his desires.
The innocent eighteen years old boy who entered the shop less than an hour ago was now a seasoned, perverted leather masted in his late fifties through and through.