Needless to say, Ty was frustrated with his pre"dick"ament. He was suddenly unable to remove the previous wish he had placed on Dustin, so his older brother was free to grow whoever he wanted for his own enjoyment, including Ty (as demonstrated by the new 7-inch cock stuffed into his jeans). Even worse, the ever-straight Dustin had apparently gotten his own growth under control by staring at men, as his dick had settled at 8 inches.
Scrambling for a solution, Ty suddenly had an epiphany. Grinning slyly, he slid over to his spandex-clad brother.
"Hey Dustin," he playfully whispered.
"What do you want now?" Dustin grumbled, deliberately looking at Ty once more to force another inch onto his brother's dick.
Ignoring the growing sensation in his crotch, Ty smiled and whispered back: "You are the gayest man on the entire planet."
Dustin looked at Ty quizzically for a moment before looking back at the store cashier's obscene bulge. Realization and horror quickly dawned upon his face a split second before his cock exploded to rock-hard life.
"OH FUCK!" Dustin loudly moaned, grabbing his throbbing boner through his incredibly revealing bike shorts as it swelled another inch. Glancing hungrily again at the understandably concerned cashier's bulge, Dustin threw his head back and groaned loudly as his cock swelled again, reaching 10 inches. Stumbling a bit, he turned a ran into a dressing room at the back of the store and slammed the door, not even bothering to lock it.
Ty followed him, half-concerned and half-thrilled to see that he was, once again, a step ahead of his older brother. Casually swinging the dressing room's door open, Ty revealed a sweating and loudly panting Dustin sitting on a bench and holding his violently throbbing 10-inch shaft in one hand, having practically torn it out of his shorts. With a crazed look in his eyes, Dustin looked up at his brother.
"What the FUCK did you do to me-uNGHHH!" he groaned as his incredibly swollen balls pulsed, sending an enormous wave of testosterone through his body. Dustin watched again as his dick grew, forcing another inch onto his already massive shaft.
"What the fuck did you do to me!?" he tried again in a voice that was a solid octave lower than it had been a few moments ago.
"I already told you," Ty casually responded. " I made you the gayest man on Earth. Every time you see another man (besides me, of course, because that would be nasty), you will feel utterly uncontrollable lust. You try to cheat my system, so I had to change it."
Dustin was about to quip back at his brother when he noticed himself in the dressing room mirror, noting a layer of stubble across his chin that hadn't existed a moment ago.
"What the fuck is happening to me Ty!?" he half-yelled, half-moaned as his swollen balls flooded his body with another wave of testosterone.
"Hmm.." Ty deliberated. "It looks like the sheer arousal you're in is causing you to get filled with so much testosterone that you're "manning up" in a way," he concluded. "But isn't that what you've always wanted?" he teased.
"NOT LIKE THIS!" Dustin yelled as he felt his average muscles suddenly swell a bit, filling out his t-shirt a bit more. "I'M GOING TO EXPLODE!"
"Fine," Ty grumbled. "I'll make a new deal with you. If you fuck another dude, they'll grow as big as you (because I know how much you like that now), and your growth will stop for 15 minutes. Sound good?"
It really didn't to Dustin, but he wasn't about to argue the point considering that his dick was close to a foot long and quickly closing in on it.
"FINE!" he yelled.