But are the happy couple now silently showing off a new sign of their commitment as well?
While watching her kids play soccer out in Brentwood, Calif., Klum and Kristen were photographed wearing similar, simple-looking bands on their right-hand ring fingers.
Which, we know, isn't the hand that traditionally indicates a legal bond—Klum is still in the process of divorcing Seal, after all, and has said she has doesn't think she will marry again—but perhaps the matching jewelry is a subtle indicator that both are in it to win it. (And, for what it's worth, wedding bands are worn on the right hand in Klum's native Germany.)
"There will always be people who will criticize whoever I live with, what kind of clothes I wear or what hairstyle I have," Klum told the German magazine Bunte in November. "At the end of the day, you have to do what makes you happy. That's the rule I live by."
The Project Runway host vacationed in Hawaii last month with Kristen, her kids and her parents.
Klum's rep has not yet responded to requests for comment on the possible significance of her new accessory.