A verbal commit to Oklahoma, Wariboko told SCPlaybook he has been in contact with USC for months now.
"They've been recruiting me since Ed Orgeron was the coach," he explained. "Now I've talked with the new staff, coach [Steve] Sarkisian offered me.
"I was excited, it was awesome."
The 6-foot-4 305-pound four-star offensive guard admitted he doesn't know much about USC's new staff, though he's aware of USC's football tradition.
Asked if there is anything that could shake his commitment to the Sooners, Wariboko responded, "my brother."
Wariboko's younger brother, Maxwell, is a 2016 cornerback.
Wariboko himself says he doesn't necessarily have any dream schools. He also was indifferent about staying local versus playing college football away from home.
"It really all goes back to my brother," he explained. "We're going to sit down and talk about things like that, I'm not exactly sure right now."
Though stating he's solid to Oklahoma, Wariboko says he still has interest in hearing from more SEC and ACC Schools.
"They've been starting to recruit me more out there," he said.