The couple spoke with ET's Keltie Knight, fact-checking each other's memory of how they met over a piece of gum.
"Who knows, her memory is the worst!" joked Shepard, before admitting that Bell's telling of the tale is accurate.
Bell explained, "He asked for gum, I said no I didn't have any, then I pulled [the gum] out [of my mouth] and said only this, then he took it."
Shepard clarified the moment further.
"I didn't say, 'Hey can I have the gum in your mouth,' I said hey do you have any more gum," the 43-year-old said. But he admitted to some bold behavior immediately after when Bell only had what she was currently chewing.
Shepard continued, "I was like, 'I'll take half out of your mouth.' And then I did."