Erick typed eagerly. First, he set base parameters for all reversions. Species: Dog, Gender: Male, Sexual Preference: default, Age: 4 Years, Status: Not Fixed, Weight: 60 lbs, Color: default, default, default, default. Then he started on conversion program, "Hmm, I think I'll see how much I can make him like me, and I'll set duration for only 30 minutes. I can always extend it, right, boy?"
"Lemmee see. Species: Human, Gender: Male, Preference: Default, Age: 22 Years, Weight: 145 lbs, Height: 6'0", Hair Color: Blond, Eyes: Brown, Nose: Medium Small, Ears: Attached lobes, Eyebrows: Full, Hairiness: Slight, Muscular Development: Average, Body Fat: 13%, IQ: 100 (don't want you smarter than me)," Erick said and winked at his dog. The rest he defaulted, and holding Bruno in his lap in front of the emitter, hit enter. The hourglass appeared and began counting down 5 minutes to change.
He watched as Bruno grew heavier, and as his rich coat was absorbed into his now pinkening skin. The hair on his head became denser, and Bruno's ears and muzzle started to shrink. The tail vanished, and buttocks rounded out. The added weight on Erick's crotch combined with the whole situation to produce a pronounced engorgement of his organs. Erick couldn't believe how handsome, he was. Bruno could be his twin. He quickly stripped naked to compare himself with Bruno in front of the mirror. They looked like twins. Which surprised Erick a bit since he'd thought he'd made Bruno's dick shorter, well maybe he'd overestimated the size of his own, he thought as he and Bruno fondled each other.
Erick knew he was straight, but seeing his exact doppleganger was so erotic. He soon found himself 69ing Bruno, and then Bruno flipped him and did him doggy-style. His shriek as he orgasmed went unnoticed by his room mate or by his landlord's whose young son had decided to throw a tantrum at the same time. As Erick climbed on top of Bruno to take his turn, he heard the chime from the computer followed by an audible voice: "Commencing Reversion: Complete Reversion To Preset Baseline of 2 Subjects In 5 minutes."
Erick was riding Bruno hard, and it wasn't until his penis lodged firmly in place and swelled up, that he realized what the Chronivac 4.0 had said. TWO SUBJECTS. He shuffled Bruno over to the computer, and tried to stop the program. The computer seemed to be higher up than it had been earlier. Dully, Erick realized they were shrinking. The help menu opened: "All default settings are alphabetical. For example, there are two options under Gender Preference: Gay, and Heterosexual. The default setting is gay." Well, that explained why he found himself knotted to Bruno. He struggled to type: cancel. His fingers were fusing into paws, and he now lacked an opposable thumb.
"Cancel" the computer read. "Beta Version Chronivac 4.0, Transformations, When Cancellation is Selected, Subjects Automatically Revert to Stored Base Parameters. Current base settings: "Dog, Male, Gay, 4 Years Old, Not Fixed, 60 lbs, Auburn Coat, Intelligence Above Average For Species,..."
Erick blinked the words no longer made sense, the color sapped from his field of view, he tried to wake Jeff, but all he did was bark, and Jeff rolled away from him. Erick struggled to walk Bruno to whom he was still knotted closer to Jeff. Auburn fur covered their naked bodies.
The computer chimed. Jeff finally awoke to two Irish Setters licking his face.