I don't have a problem with guests taking their own photos at the wedding, but I'd really like to be the first to decide which pictures (if any) are blasted all over social media. I feel that as it's my fiance's and my event we should be able to have the "first rights" to posting these pictures, also, there may be acquaintances or friends of friends that weren't invited who then see them, and lastly, my fiance is a somewhat private person and is not comfortable with having his picture/s on Facebook, Twitter, Snapchat, etc. Is there a polite way to ask them to refrain until the bride and groom at least have a chance to post some pics?