Bill continued to pound on the Chronivac; trying to figure out the dammed technology.
"I think I've figured out the Chronivac" he said. "I think I can get Jeff all the way to completely human."
"That would be great" said Jeff." I'm getting hungry for human food, and not just gas. Plu-s it would feel good to lay down in the bed."
As the garage door closed, Bill hit enter on the Chronivac. Immediately, Jeff could feel the tingling starting to transform his body.
All of a sudden, Greg remembered his phone fell down in Jeff's floorboard. "I've got to get my phone!" – and he hopped back into Jeff's slowly collapsing door.
As he climbed in, Jeff's transformation suddenly accelerated.
Jeff was rapidly collapsing from metal into flesh. He was already half the size of the wrangler he was before. All holes in his exterior fused and turned to flesh. Greg was trapped within him.
The Chronivac chimed, "WARNING: foreign body detected within subject. Analyzing and processing new configuration. Processing complete: subject and foreign body compatible. Continuing transformation."
As Jeff was starting to feel more human, he could tell something was wrong; as if his belly was overstuffed. Greg's skin melted off, and he started to diffuse into Jeff's body. Greg could feel his body disintegrating and flowing into Jeff's reforming blood stream. Jeff could slowly feel his muscles and bones reforming. But something was different- and more powerful.
The Chronivac chimed again: "reassigning foreign object to appropriate output."
Jeff's body completely absorbed all of Greg. The resulting man that formed was a giant. The new Jeff towered at 7 feet and 300 pounds. He had the combined muscle mass of both the old Jeff the old Greg. But it was young lean chiseled mass. The effect of adding both of their bodies together gave Jeff a broad frame and linebacker/lumberjack proportions.
Bill stood there mesmerized by the change. But looking at Jeff's face, it was unmistakable – it was still only Jeff. Where was Greg? His body mass appeared added, but none of Greg's features.
"Is Greg in there? ask dad.
"Oh yes –" said Jeff. "Greg is here all right." Jeff flipped up his foot long dick and pull back his foreskin. A tiny Greg face was there at the end of his dick.
"Greg was always a dickhead to me growing up, so now it's appropriate and he is my dick."
The piss slit seem to be mouthing words. Bill lean down to try to hear. He could faintly hear Greg's voice saying "transform me back! This is ridiculous!"
Bill yanked on the Greg penis, as if he was trying to tear his favorite son back off.
"Yes- he's attached and fully part of me. If you keep that up, you going to make him stand at attention."
"Too late" whimpered Greg. He could already feel himself expanding and rising.
"Well dad-" said Jeff, "You need to finish what you started."
"That would not be right –" said Bill, but Jeff cut him off.
"Do you think what you've done to me the last couple of days was right? You forced me to become your other son's vehicle, during which he has subjected me to disassembly and reassembly. I think paybacks are hell."
Jeff easily overpowered his dad and forced him to take in his Greg Dick.
Greg hardened to 18 inches of thick man meat. He barely fit in to bills mouth. All Greg could see is his dad tongue washing all over his face.
Jeff forced Bill to polish Greg the schlong until he was hard as wood. Jeff pulled out and spun Bill around. Jeff ripped Bills pants off with one tug, and plowed into Bill. Bill rose off the floor with the force.
Greg could not believe what he was seeing. He no longer had eyelids, so all he saw was his dad's scrotum. The smell was overbearing; but the heat felt good. Greg started to relax and enjoy the fire building within him. He felt the cum surge through his entire body and blowing out of his mouth. Jeff continued to pound Bill until he blew his load through Greg. It was two minutes worth of load.
Jeff released his hold on Bill, and let him retreat.
"I'm going into the house to clean up little greggy here. Then I'm going to try to find something to put on. I think I need a night out on the town."
After he left, Bill knew that Jeff was too powerful as he was. He needed to get the Chronivac to separate Jeff and Greg again. The Chronivac screen said "ERROR! The two former entities are now one. Change is it reversible. Entities will remain fused together. However – transformation of the new entity in total is still possible."
"Now that's an idea" said Bill. He didn't like that he lost one son, but at least he might be able control the monster that they have become.