"Romance is romance, but in addition, romance can just be breakfast over the tops of heads and just getting through the day. You've got to find a way make that romantic," she said during the press junket for "Valentine's Day."
"Somewhere around the second kid, I thought, 'This is really turning into something.'" she joked.
Garner also defended her thin frame when actress Shirley MacLaine put her and the film's other young actresses on the hot seat asking them during the junket what they eat.
"I'm nursing," Garner said. "When I'm done, I'll puff right back up."
Roberts added sarcastically: "Good, alright, I'll stay tuned for that."