Matt and Jason are told they will be testing a special body lotion. They are taken into a room divided by a curtain, and asked to strip. Two attendants measure each male on either side of the curtain. They take copious notes.
"You, okay, Matt?" Jason asks through the curtain.
"A little cold, but otherwise fine, Jason. How about you?"
"Well, I guess I'm okay. It was just a little weird having a stranger touching me."
"Well, for four thousand bucks, I don't mind them copping a feel."
"I don't get why they do all this just to test a skin product?"
"Hey, it's their money, but it'll soon be ours."
"I'm just worried that there might be nasty side effects."
"Well, don't --oh, here's the doctor again."
"Hi, boys," he reads a typed instruction sheet, "Please take this bottle, and use the contents to coat your entire body. Pay particular attention to get the oil over every inch of your body and in every crack and crevice even between your toes and behind your ears. After you've thoroughly applied your product, I'll be back to ask you some questions. Please remain naked and standing while you wait." Then he handed Jason a bottle marked A10, and Matt a bottle labelled A15.
Then he left.
Matt sniffs his bottle and says, "It smells pretty good."
"Just put it on, dude, so we can get our money and get our of here."
"You must really want that candy."
"You got it," Jason answered, "Hey, how about a little help here, bro. I can't get this oil on my back."
"I just poured mine over my head and let it flow down, but I'll come over and help you, Jay."
Matt pulled the curtain aside, and Jason laughed. "Dude, you're all shiny." He didn't mention that Matt was also sporting a boner after oiling his cock. Jason hands Matt his bottle and Matt pours it on his hands, and begins to massage Jason's back.
"What the f--?" Matt gasps as his hands sink up to their wrists inside his brother's flesh. He tries to pull out but he seems to be firmly attached.
He looks down and sees his cock is shrinking as his hormone levels plummet. At the same time Jason notices stubble appearing on his chest and crotch. Jason's cock seems to be growing.
"What's happening, Matt?" Jason asks as his voice cracks.
"I'm s-st-uck," Matt gasps as his voice rises several octaves. His higher pitch voice says, "I gotta get unstuck!" He puts his foot on your butt and pushes. Instead of pushing away, his leg steps inside Jason's. His torso plunges into Jason, and suddenly, Matt's neck is sharing Jason's torso. "Don't move, or we'll merge more," Matt warns staring into his brother's face."
"Oh, I'm sorry, I didn't know we had any conjoined twins in this test?" the doctor says reentering the room.