Sarah Michelle Gellar's Kids Look All Grown Up

For the more traditional among us, brass is considered to be the classic 21st anniversary present. So since Sarah Michelle Gellar and Freddie Prinze Jr. hit that particular milestone last September, they might consider shipping off a piece of heavy metal to their good friend. 

Because had their mutual pal not missed her flight to the west coast on that fateful January 2000 day, the I Know What You Did Last Summer costars may have just carried on indefinitely as buddies who have the occasional friendly meal. 

Instead, with their dinner companion a no-show, "we decided to still meet and catch up," Gellar shared on Instagram. 

And at upscale sushi ea…