Ty wished that they were both outside then that no one except Dustin would notice what was about to happen.
Dustin was still vigorously massaging his cock desprate to cum. Ty had made him horny enough to cum without even toucking his cock but held back his climax on purpose.
"Ready for this Dustin?" Ty asked. Dusting looked worried but also incredibly turned on. It was a little chilly outside and Ty's massive nipples were now hard, Dustin couldn't take his eyes off them.
"I wish I would grow 150 feet tall." Said Ty.
As his towering form gained more size, Dustin could only jerk off faster.
"Holy Shit TY. This is so fucking hot. You were already so much bigger than me before."
Ty widened his stance so his growing feet wouldn't flatten the fence and placed a giant foot in each of his neighbor's backyards. Dustin now stood directly between Ty's enormously muscled legs. 8 Greyhound buses could fit into each of his gigantic thighs. His raging hard cock completely eclipsed the moon, casting all below into shadow. As he reached his full height Ty widened his stance again and stepped back a little so Dustin was in front of him and his stiff dick.
Dustin was still shouting about how horny Ty was making him but Ty couldn't hear. Ty was actually enjoying some of the things Dustin had said, and he really liked being able to show off to someone. Ty considered maybe after this he leave Dustin alone.
Oh well. Ty put on a "little" show for Dustin, sending him into horny overload. Flexing his literal peaks for the tiny boy and grunting in a voice that shook Dustin, "Damn I'm huge. And hung." He said as he grabbed his zeppelin like cock. "You're right Dustin. I am fucking buff. I was big before but now I'm the biggest buffest fucking stud ever. A T-Rex could ride my cock."
This whole time, Ty had been flexing and stroking into a frenzy. He'd made his muscles even bigger just for the feel of it and made his balls bigger too. Now he put both house sized hands on his cock and prepared to finish. He would release Dustin at the same time. Ty grunted as he neared climax, then he pointed his enourmous piss slit downwards and let out a roar that actually registered a 5 on the ricter scale. Dustin finally climaxed, unleashing his biggest load ever, which was immediately swept away by a torrent of cum that completely flooded the neighborhood in up to ten feet of semen.