Going on the assumption that more is better, Jeff squirted more of the sparkling lube into his fist and renewed his urgent stroking of a hard cock desperate for release. He would have preferred fooling around with Michael, but the sensations from the lube helped him forget their little spat.
Jeff liked to tease and coax himself close, then back off, enjoying the crescendo of the pulse of his blood in his ears as his attention became entirely consumed by the ache for release.
As he kept stroking, however, he noticed something... something different. His cock felt different. He stopped stroking long enough to inspect his cock. The normally hefty cock with a flared mushroom head had become thinner and grown more pointed at the tip, which at the moment was leaking a significant amount of pre-cum.
"What the...." Jeff gasped in shock. The changed cock appeared only the start of a cascade of changes that left him dizzy and breathless. His waist narrowed and the hair on his chest vanished, leaving him as smooth as a young boy. A quick check revealed the same was true in his armpits and crotch.
Even with these shocking revelations, his hand kept straying back to his cock. Now, when he touched it, his entire body shook from the intense sensation. He began pumping his strange, new cock, which accelerated a new change as his body mass began to decrease. From Jeff's perception, the room and everything in it seemed to expand around him. The disorienting sensation as he shrank provided the trigger that sent him over the edge. As he exploded onto his smooth belly, he noticed that even his cum looked different. The splats of warm, thick white were sprinkled with gold and silver glitter.
The release after the intense build-up also seemed to deflate him even more and he shrank rapidly to about six inches tall.
"Oh shit," he squeaked, still resting on his back on a bed that now looked as big as a rooftop of a building.
Then he felt the oddest sensation between his shoulder blades. He sat up, which allowed a new pair of glimmering, nearly transparent wings to unfold.
"Oh shit," he squeaked again as his eyes locked on the tube of stolen lube. "Oh shit!"