Sasuke provokes him with words about his dead father

Sasuke took a step closer to him, his cock swaying slightly as he walked. "Your mom's been craving something bigger and better than that pathetic excuse for a man you call a father. And let's be honest, she deserves it after putting up with your incompetence all these years."

The mention of his father hit a nerve, and Naruto's hand began to shake. "Shut up! You don't know anything about my dad!"

"Oh, I know plenty," Sasuke said, his voice smooth and taunting. "How he couldn't satisfy her, how she would always come to me for more. It's a wonder she didn't leave him sooner."

Naruto's fists clenched, and he took a step back, his mind racing with a whirlwind of emotions. The anger was overwhelming, but he couldn't deny the part of him that was turned on by the thought of his mother desiring something more than his father could give her.

"Why don't you join us, Uzumaki?" Sasuke suggested, his smirk widening. "It's clear you're enjoying the show."