"I have one idea," Derek said. "Do you mind?" Jeff shook his head, and Derek began typing. Jeff chose not to watch so he could be surprised.
"What did you do?" he asked when he heard the Chronivac chime.
"Something really fun," Derek replied.
Jeff waited for something to happen. Nothing seemed to change, although his balls were feeling a little funny. He waited some more and looked his body over. Still nothing happened.
"Put something on and let's go to the gym," Derek told Jeff, smiling. "Trust me. You'll be able to see the changes there. Is there a way to take the Chronivac with us? Is there a mobile device with it?"
"I'm not sure," Jeff said, putting some clothes on. "The box is over there." Derek walked over and stooped down to look inside.
"Yep," he said, pulling out what looked like an iPod Touch. "I've got it. You ready?" Jeff nodded. "Let's go."
They got to the gym and walked into the men's locker room. Derek pulled Jeff into a dark, secluded corner. The only other people in the locker room was a pair of bodybuilders in their thirties. They was standing at a locker, changing out of their workout gear.
"Watch this," Derek whispered. He began to pump his cock. Jeff's own cock got hard, but that was just from seeing Derek's cock. Derek was able to suppress his moans really well, but with one slightly audible moan, he orgasmed. What surprised Jeff was that, instead of cum coming out of Derek's cock, a greenish gas came out.
"Just...watch," Derek panted. Jeff watched as the gas made its way towards the two bodybuilders, who had just shucked off their jockstraps. The gas crept closer and closer to them, but they didn't seem to notice.
"Can't they see it?" Jeff asked.
"No, only those who can shoot the gas out of their cock can," Derek explained. Jeff was about to ask for clarification when Derek just pointed to the man.
The gas circled around them for a little bit and then converged on their cocks. Their cocks hardened and sucked the gas up, leaving no trace of the gas.
They stopped moving and looked at each other. Their cocks hardened even more, and soon their lips were locked with the other as they embraced and groped each other.
"See?" Derek asked Jeff, who watched the shorter bodybuilder begin to suck the other's cock. "The gas makes other men horny and gay."
"So since I can see it, does that mean I can emit it too?" Jeff asked. Derek nodded. "Cool. This could be fun."
What happens next?