At first, nothing in Jeff's wardrobe had changed, which confused Dean. But as he took Jeff's favorite jockstrap out of it, it changed into a chastity cage in a fitting size for Spike. Dean smiled down at Spike before putting the cage over his cock and balls, locking them up. He took the key and placed it on his own key-chain, so only he could free Spike's gear.
Just as Dean wanted to turn back to the wardrobe he noticed that the jeans Jeff had worn before started to reform on the ground and picked them up. The jeans legs merged together into a long, stiff latex rod, while the upper end of the jeans was pressed together into a dildo-like object, and Dean laughed as he recognized it as a butt-plug with a black dog-tail on the outside. Grinning, he pushed it into Spike's ass, letting him yowl. But that soon stopped, and Spike licked Dean's shoes again.
Dean, turned on by this whole change, tented his own jeans. So he quickly took them off, and said: „Good boy, want to suck me off?“ Eagerly Spike started to suck on Dean's cock, making him moan in pleasure.
After he shot his cum down Spike's throat he moved back to Jeff's wardrobe. Grabbing a pair of Jeff's sneakers from the bottom, it changed into paws. But Dean noticed they wouldn´t fit on Spike's feet, so that were the fore-paws. Grabbing a second pair, this time Jeff's hiking boots, they turned into paws as well, but this time it were hind-paws. Dean slipped them easily over Spike's hands and feet, as Spike waited eagerly for his master. They fitted perfectly, and Spike liked Dean's balls this time to show how much he liked all this.
Dean then touched the shirt Spike was still wearing, and it stretched over Spike's body, slowly covering anything form the collar down to his paws before becoming leather with some fur on it. Only Spike's belly wasn´t covered by the gear.
Dean decided Spike wouldn´t need a mask normally, but to complete the look he would get one. So he grabbed Jeff's discarded underwear from the ground. As it didn´t change right away Dean used it to wipe his cum that Spike hadn´t swallowed up. Just as he put it aside to look for something other the underwear changed into a leather dog mask. A small sniff showed Dean it still smelled like his cum, and grinning he put in on Spike's face. Now Spike was in full dog gear.
Meanwhile Jeff was trapped inside his own body, submissive due the slave option, and Spike had the control over his body. But he still was able to use any of his senses. He watched unhappy at his changing clothes, and was shocked how much fun Dean had with Spike. He screamed at the cage on his cock, angered that Dean did something like this to him. That turned to painful cries as the tail-plug was rammed in, and he cried longer than Spike yowled. He was disgusted as he sucked Dean's cock off, as if licking his shoes wasn´t bad enough. The paws weren´t really a problem for him right now. The same was the gear his shirt had turned into. But as Dean used his underwear to wipe the ground before it turned into a mask, he screamed again, but the mask reeked of Dean's cum, which made him even angrier.
„Let´s head home now, boy.“ Dean said and took Spike's leach. Jeff was still furious inside, but could do nothing but wait for the week to end.