Jeff layer in the doghouse that he was going to have as his home for now, at least he was with his own family for the duration of this. Jeff looked at himself, nothing had changed, not his posture, not his apperence, nothing yet and it had been an hour after he had set the chronovac.
Jeff decided to look at the one thing he was somewhat scared of. His gender. He had set the chronovac to change Him into a female golden retriever. Daring to take the plunge Jeff lifted himself up and looked down at his crotch. To almost he shock and expectation his penis had shrunken as had his balls. That explained the lack of changes, his gender was going first.
Deciding to do as dogs do Jeff crawled out of the doghouse and stood up on his legs, stretching from laying down so long. Looking at his slowly shrinking penis he decides to take it for one last bathroom trip before it goes. Walking other to the tree in the yard Jeff points his shrunken penis at the roots of the tree, trying to force himself to piss. He could feel it that he had to go, but it just wouldn't let him.
Deciding to try it the dog way Jeff got on his hands and knees and looked at the tree, lifting one of his legs up and supporting it on the tree Jeff was pleasantly surprised to see that he took a nice long piss. But afterwards his penis had shriveled from that one use, having ejected all it had in that one bathroom break. Standing up again Jeff decided to observe his slow change.
Watching his shriveled penis change was both boring and fascinating. Slowly but surely it shrunk to a pitiful size before long. Watching as his balls get sucked up into his body he could feel as his body shifted from testosterone to estrogen slowly. A small slit was now centered where his ballsack used to hang and his penis was only an inch long.
Jeff watched as it shrank even further before sliding into it's new home, her vagina. It was official, Jeff was now female. Jeff wasn't a very female name, she thought but decided to wait and see what her owners called her. Jeff decided to crawl back into her doghouse and lay there for a while afterwards.