The hot liquid flowed through the duct that now ran the entire length of his body. He felt it racing along, stimulating the inside of his urethra, before being focused and ejected through his mouth. No matter how much he tried, he could not shut his mouth. The torrent forced it open, its tiny lips spread apart.
He gazed down at the stream of piss hitting the bowl. The yellow liquid splashed as it hit. Gradually the flow tapered down, then some muscles at his base spasmed in order to pump the last of the liquid out of Bobby's bladder. The spasms caused Steve to go swinging, his view of the world moving around violently. Bobby's hand rushed down to stabilize him and make sure that no mess was made. The touch of Bobby's hand to Steve's flesh felt great.
The flow slowed to a dribble and Bobby shook him. Steve spit the last few drops out. That stuff really tasted awful.
Afterward, his horror was gone, replaced by a strange relief. He stared at Bobby's hand, holding him. Bobby bent him upward to point at his face. He smiled.
"Let's have some fun."
He started jerking Steve, his hand going back and forth across Steve's skin. Steve felt the grip go across his entire body and gave a shiver. Blood started to fill him from his base. He started to grow again. His relief and ease was replaced by a tension.
"Damn Bobby," he thought, "My own brother jerking me off, how gay is that?" His tension gave way to anger at his transformation and treatment.
The blood continued to poor into him. His body was expanding out like a balloon. It now had an enormous girth and length, but it was still soft. Bobby was just rubbing him with his palms now, his grip not able to reach around Steve's shaft. The outer skin stopped expanding and the blood began to make the gigantic 2 foot softy into a hard 4 foot hard-on. Beneath him were 2 testicles the size of beach balls hanging down a foot above the ground.
As Steve's head rose up into the air inches at a time, a single thought repeated over and over in his mind,
"I will have revenge!"