"Uhnf~ M-Momma! It grew again!" the kid moaned, his cock surging as he pumped out another viscous load of cum. The white goop splattering messily against the bathroom wall before collecting in the tub. Both of his puny hands working to stroke and hold down the monstrous slab of meat as it blasted another shot into the tub. His white cream flowing over the sides already, despite being a two-person bath.
He cried out as another blast nearly knocked him off his feet, sending the three-and-a-half foot pillar of flesh flailing, the near-constant stream of cum painting the walls white as he squeezed more cum his needy, swollen priapus.
Slowly as he came down from his crashing orgasm, the bathroom floor was messy and flooded up to her ankles in his hot, steamy cum. The white seed clinging to her flesh and clothing, and his too. Well, mostly him, considering he was naked.
His giant balls started to refill, down between the shins of the 2-foot-2 lad, his messy black hair made messier with the bits of white now mussing it up. Breath heavy, he looked up at his mother, biting his lip as he took a step, slogging through the small lake of cum to hug his doting parent. "I'm sorry I overfilled the tub... It was an accident, but... my p-penis is..." he trailed off, blushing brightly as the 5-year-old was silenced by a hug from his mother, snuggling against her in their warm embrace, with his towering cock between them, pressing into her massive breasts.
It was in these moments he felt amazing, or the moments in the bedroom. Slowly, the boy reached up, his Mother oractically expecting the following as he pressed his lips to hers. Moaning softly as he gave her a gentle kiss.
"Uhhnf, Momma its happening again!"
They both looked at his penis, watching as the swollen piece of flesh grew bigger, reaching upwards to five feet, the biggest growth spurt yet, and so soon after his last one. All the while, he was rubbing as much as he could of his gigantic penis.
The Mother watched on in lust, a wet spot becoming apparent in her jeans, growing bigger as she watched her son jerk his rod, thinking that just last week it was a foot and a half after just one pill, and now after she gave him two more, its bigger than her.
"I can't wait to feel it inside me" she thought to herself, watching as her son came, visibly raising the level of cum in the bathroom.