Kyle was having fun. He had tucked the straws into the sinews lacing Trevor's mouth shut and he and Josh had each drawn one. He was surprised when he undid the lacing and found that Trevor had the long straw, fortunately Josh was the short straw. He wondered how Trevor would type in Josh's mods. He unlaced Trevor's mouth and lectured him about his mouth getting Kyle hard. Trevor could have said nothing at all, and Kyle would have popped a boner after changing Trevor into his loincloth. He didn't plan to stay a Neanderthal forever, but he wouldn't mind keeping Trevor as his furry undies forever. Maybe the normalcy feature of the Chronivac could be used. Everyone would think that Trevor had always been Kyle's underwear until he used the Chronivac to make him human? He'd have to work on that.
"Okay, Trev, or should I call you butt hugger? Or crotch hugger? Heh, heh, so Josh drew the short straw. Let's see whether you can change him, or if the game is over now. If you cannot use the Chronivac, you lose, and as forfeit, after Josh and I change ourselves back, I get to wear you for the rest of the weekend."
"Uh,ah, I'll change him. Walk over to the Chron-oh-fuc," Trevor manage to say. Kyle's cock was straight up and hard, and a droplet appeared on the tip of his penis.
"Okay, okay, but if I blow my load on the computer, I'm using you to wipe it up," Kyle said.
Trevor didn't answer.
When he was in front of his computer, Trevor said, "Drusilla, voice mode."
"Voice Mode Activated," said a female voice from the computer's speaker.
"Wicked, I didn't know you had voice recognition software," Josh said.
"Chronivac change subject Josh."
"Subject Josh selected. Designate transformation."
"Adult diaper #4 for Kyle. Location under Kyle's loincloth."
"Wait, NO!" Josh hobbled over on all fours and vanished.
"Oh, my!" Kyle shouted as he felt the papery fabric replace the wet warm softness of Trevor's insides. "I don't know how we're going to draw straws now."
"You'll find out. Get the straws now," Trevor ordered with Kyle's swollen manhood safely trapped inside Josh's absorbent body."
"Okay, holding the straws," Kyle said.
"Hold them up to your crotch."
The fly puckered up and pulled out one of the straws.
"Okay, I'll pull mine and then Josh gets what's left," Kyle said reaching with his other hand.
"No, Josh, draw." Trevor ordered.
Two white tentacles rose out of Kyle's diaper, and Josh drew the long straw.
"Okay Josh, looks like Trevor's the short straw. So how are you going to modify him."
Standing in front of the Chronivac with diaper eyes peeking over Trevor's furry body, the white tentacles typed away. Kyle smiled.
He looked in the mirror, and Josh's face and bare torso stared back. He was wearing a bright green Speedo. He could feel the diaper still underneath. but couldn't see it.
"So whoever wears this Speedo looks like a buff version of Josh?" Kyle said, "And you shut Trevor up too, no fly. So are we done?"
The pair of strings to tighten the Speedo rose up out of the suit along with the tentacles from the now invisible diaper.
"I guess you boys still want to play. But the game starts in a couple minutes, and I'm hungry. So the contest will wait until later."
Kyle pulled on Josh's shorts and tee-shirt, and headed downstairs to raid Trevor's parents' fridge.
He was back up in Trevor's room lying on the bed watching the game on Trevor's TV and eating Trevor's pizza and drinking a beer.
The game was exciting, and Kyle was a caveman after all, even if he looked like Josh did normally. He wiped his greasy hands on Trevor's bed sheets, and finished the six pack of beer. He belched, and then decided to test the diaper.
Josh and Trevor were horrified as Kyle emptied his bladder and then his colon into Josh. Trevor was glad he had selected the number 4 option that he had created earlier - he only wished he had done it to Kyle. Josh absorbed everything, and instantly became a fresh diaper again. Kyle grinned, and said as the commercial played, "I guess I never have to take you two off now."