In case everyone forgot about this, and because the fuck list is such a trend right now, Nick Cannon was asked to name at least five celebrities he's slept with during a Power 106 interview. He actually answered it. Now everyone remembers he's banged Kim Kardashian before. Via Page Six:
“Mariah Carey,” he starts. “Christina Milian, Nicole Scherzinger, Selita Ebanks … oh, Kim Kardashian!”

“I didn’t know that Kim Kardashian thing,” Big Boy says. “I just forgot.”

“You just forgot because it’s been a lot of people since me,” Cannon replies with a laugh. “She’s a great girl though! Her and her family are some of the most incredible people I’ve ever met in my life.”