Pregnant Bridesmaid Jessica Simpson Wears Black for Best Friend's Wedding

"I was the maid of honor last night for my BF @caceecobb. She was the most beautiful bride I have ever seen in my life!"  Jessica Simpson

The possibly pregnant star struck a pose with her BFF, bride CaCee Cobb, who wed Scrubs' star Donald Faison Saturday in Los Angeles in front of 75 friends and family members.

Simpson tweeted Saturday morning, along with a photo of herself strategically hiding her tummy with a bouquet of flowers as she stood beside her fiance, Eric Johnson. Jessica Simpson has never officially confirmed she was pregnant, the new photos have fans discussing the subject all over again and apparently most fans think she is pregnant. Jess may be giving the public, who you know is collectively waiting for her to "get huge," a run for their money. The Fashion Star mentor and fiance Eric Johnson's second baby "definitely wasn't planned," says the source, but the singer-designer is said to be "overjoyed" with her surprise news.

Yes, black is slimming -- as are large objects strategically placed over midsections -- but the way this bridesmaid dress is made, with fabric gathered together in the middle, doesn't make it easy to look, um, small. In fact, I find these types of dresses to be have the least flattering kind of fit.

Celebrity Bridesmaids Walk Down the Aisle

Every bride needs support on her big day, and that might mean having her famous friend stand by her side at the altar. We've already taken a look at all the gorgeous celebrity weddings over the years, but sometimes the stars aren't the ones saying "I do." Let's have a glimpse into some of the most special wedding moments celebrity bridesmaids share with their friends and families. Click through to see Jennifer Aniston, Jennifer Garner,Kate Bosworth, and others share the love at a girlfriend's wedding!

Katharine McPhee was matron of honor at her sister Adriana's church wedding in Beverly Hills.

Jessica Alba wore a blue one shoulder dress Amsale gown as she walked down the aisle at a friend's wedding with hubby and best man Cash Warren.

Jennifer Garner was a bridesmaid at the wedding of her producing partner, Juliana Janes, at Montecito Country Club near Santa Barbara.

Jessica Biel was a bridesmaid at the wedding of her "7th Heaven" co-star Beverley Mitchell in Ravello, Italy. Each bridesmaid wore a strapless chocolate brown gown by Vineyard Collection with a matching wrap.

Kate Bosworth wore a Lisa Ho halter-neck bridesmaid dress to the wedding of her friend Jackie Louez at Balmoral Beach in Sydney, Australia.

Sarah Michelle Gellar was a bridesmaid at the wedding of her manager, Nicole King, at Bacara Resort & Spa in Santa Barbara. The bridesmaids wore pale pink bridesmaid dresses with a black sash around the waist.