Totally TMI! John Cena sure feels comfortable talking about anything with his girlfriend, fellow wrestler Nikki Bella, and opens up to her on the Nov. 10 episode of Total Divas about something many guys would never disclose: Bathroom habits. In a sneak preview clip from Sunday's all-new episode, the WWE wrestler -- who also works as an actor and rapper -- recalls a previous wrestling match where things didn't exactly end as he planned.

"Did you hear about [fellow wrestler] Nattie? She peed her pants in her match -- a lot!" Bella tells her man in the video clip above. Sympathizing with Nattie, current World Heavyweight Champion Cena then takes it upon himself to share the intimate details about a similar experience he once had.

"I pooped myself once," Cena tells his girlfriend without missing a beat. "I had to throw [my pants] away. It was in Saskatoon, Saskatchewan, I had food poisoning and I still went out to wrestle. Everybody knew -- I was embarrassed."

In a voiceover segment, Bella reveals that she couldn't be more disgusted by her boyfriend's embarrassing bathroom admission. "I don't know what to think right now -- I guess I'm just thinking about s--t! That would be so embarrassing!"

Total Divas airs Sundays at 10 p.m. (EST) on E!