She's an excellent student and popular among boys. But after we started dating, I discovered her unexpected side—her intense sex drive. Even during class, she'd secretly masturbate, constantly teasing and seducing me. Unable to resist, my cock stayed rock hard. She happily sucked me off, greedily enjoying my bare cock in her tight pussy. Again and again, she'd make me cum until my balls were completely empty. Her passion and lust were insatiable, like a demon impossible to stop.