Jessica Simpson JSIMPSONASHLEE011707_09_X17.jpg
Jessica Simpson may be keeping mum on her own wedding rumors, but one thing she's not shy about is bragging that she'll be standing up next to her sister on Ashlee's big day!

People mag reports that when asked if she'll be her engaged younger sister's maid of honor, the singer/actress replied "of course!"

Think Ashlee will do the same for Jess if she and Tony Romo get hitched? Or will she be too big to waddle down the aisle by then?