(PHOTO:Twitter/Andrea Barber)"Love my Full House family. Full heart," Andrea Barber wrote, posting a picture of the "Full House" 25 year anniversary part on Twitter.

The "Full House" cast celebrated its 25th anniversary with nearly a full house, although they were missing a pair.

The cast of "Full House" celebrated their 25th anniversary together with a reunion over the weekend, two and half decades after the show first premiered.

Costars Bob Saget (Danny), Dave Coulier (Joey), John Stamos (Jesse), Candace Cameron Bure (D.J.), Jodie Sweetin (Stephanie), Lori Loughlin (Becky), Scott Weinger (Steve) and Andrea Barber (Kimmy) packed the house in according to Us Magazine. But the youngest stars were nowhere to be found.

PHOTOS: SEE OLSEN TWINS IN THEIR CUTEST PHOTOS FROM FULL HOUSE - CLICK HERE

Here's a riddle: how can only one character be missing from a full house, but two stars? Well, if both of those stars happened to be twins. Both Mary-Kate and Ashley Olsen missed the "Full House" reunion. The sisters swapped back and forth as "Michelle" in the late 1980's classic.

The Olsens, 26, did not appear to give a reason for their absence to the public, but of course the show must go on. And so the party did, with at least a couple of cast members sharing private party photos on their Twitter account.

"Love my Full House family. Full heart," Barber shared, adding later, "I just danced to three NKOTB songs in a row with @candacecbure and @JohnStamos. Life is complete!"

VIDEO: See 'FULL HOUSE - THROUGH AND AFTER THE YEARS' Video Special - CLICK HERE

"Full House rocks!" she wrote around 7:30, around the time the party ended. "Also, I may have had a couple drinks."

"Full House" made it's first official debut in 1987, but its most popular reign occurred during the early 1990's when the Olsen twins were at their most popular. Long gone however, are the days of Mary-Kate and Ashley Olsen adventures.

PHOTOS: SEE OLSEN TWINS IN THEIR CUTEST PHOTOS FROM FULL HOUSE - CLICK HERE