Timmy watched as Jamie nodded off, a grin creeping across his face as he was now unsupervised. He felt his shorts being pulled taunt as his tremendous penis swelled up bigger and bigger. Inch by inch it lengthened and swelled. Timmy carefully stood up, so as to not disturb his now soundly sleeping brother.
He walked slowly and deliberately to his room, slowly running his fingers along his considerable length, feeling it swell even more in response. As he entered his room, still soaked with the remnants of his last load, Timmy couldn't take it anymore. With one hand, he tore his shorts and shirt from his body, throwing them to the side.
His massive, foot-long dick swung free into the room, throbbing with a powerful beat. He grabbed the bulging tip firmly with one hand, and felt a jolt of the good feeling. "Oh yessss...", Timmy moaned as he began to stroke in earnest, already pent up from the short time he had been prisoner in front of the TV. Timmy used to love watching the TV, but it wasn't even close to how good this was. "YES", Timmy exclaimed under his breath as he felt the rush. It was coming.
His long, thick penis throbbed hard as his hands froze around it's length. It pulsed. His massive, swollen balls churned, almost audibly. The hole flared open wide, to the width of a paper clip.
Then a heavy stream of thick cum burst from the tip, flying into the opposite wall 7 feet away with enough force to make a loud slapping noise. Timmy was stunned at the power, and as he looked down at HIS giant cock it pulses again, visibly lengthening an inch as the next stream of cum flew forth. With each subsequent spurt his perspective rose, as his penis grew more and more. Spurt, smack. Spurt, smack. Spurt, smack. "Ohhhhh more!", Timmy was in utter bliss. Spurt, smack. Spurt, smack. Every blast making him even bigger and more hung. Spurt, smack. Timmy began to turn on the spot, aiming his penis with both hands, spaying his seemingly endless load over every wall, bed, table, window, as his head slowly approached the ceiling.
12 inches from the ceiling. 11. 9. 6. He let go of his penis as he felt the orgasm leaving him, and his dick sprang straight up, swelling 6 more inches, up to this height of his pecs as the final shot EXPLODED. Into the ceiling.
Timmy was breathing deeply, experiencing an intense afterglow. But he wasn't spent, not at all. He knew he had more time until his brother woke up, and his penis hadn't softened on bit.
He felt something strange in his crotch, and as he looked down he watched his grapefruit sized testicles triple in size and drop to his mid thigh.
Timmy exhaled powerfully, a wicked grin creeping across his face. Placing his massive hands in his even more massive phallus, he said, "MORE." And settled in for the long night ahead.