Naruto stays and watch Sasuke fuck his Mother with is 30 inches long and 100 inches Girth cock it is bigger than Naruto and his dead Father (Minato) there cock size are 20 inches long and 50 inches Girth.

Naruto's mind raced as his mother and Sasuke disappeared into the bedroom, the sound of their footsteps echoing down the hall. His heart pounded in his chest, and he felt a mix of anger, arousal, and betrayal. He clenched his fists and considered storming in, but the sight of his mother's submissive behavior had stirred something within him that he didn't quite understand.

Instead, he tiptoed closer to the bedroom door, his curiosity getting the better of him. He pressed his ear to the wood and listened as the sound of rustling fabric grew louder, followed by the unmistakable wetness of flesh slapping against flesh.

"Oh, yes, Sasuke. Your cock is so much bigger than his. It's so much better!"

Naruto's blood boiled at the sound of his mother's voice praising Sasuke, especially when it was clear she was comparing it to his own father's. His hand reached for the doorknob, but then he paused.

Maybe this was his chance to get some insight into why she had never talked about his dad. Or perhaps he could learn something from the Uchiha that would give him an advantage in their eternal rivalry.

Slowly, he turned the knob and pushed the door open a crack, just enough to see. His eyes widened in shock. Sasuke's cock was massive, easily twice the size of his own and thick enough that Kushina's hands couldn't wrap around it. It was a dark shade of purple, with bulging veins that pulsed with each thrust into her eager pussy.

Kushina was sprawled out on the bed, her legs in the air as Sasuke pounded away at her, his hips moving like a machine. She was in ecstasy, her face flushed and her eyes rolled back in her head.

"Take it all, Kushina. Take all of my cock."

The words sent a shiver down Naruto's spine, and he couldn't help but feel a twinge of envy. Despite his rage, he found himself getting even harder at the sight of his mother's pleasure.