When the Bridesmaid or Maid of Honor is a man.
What's a bride to do if her best friend is a guy, and she really wants him to be a special part of the wedding party? If your best bud is a man and you really want him to be an attendant, then by all means. This new role is perfectly acceptable is done tastefully. His role will be slightly different than that of one of the girls, but allow him to feel comfortable with his duties.
In traditional portrait poses, the men will all be on the grooms side, be sure to inform the photographer that he is one of the brides attendants.
Suggestions for the Man of Honor
Run errands and address invitations
A male bridesmaid/maid of honor usually wears the same attire as the groomsmen, but may have a different boutonniere, tie or vest.
Walks down the aisle with an unattended guest of honor, the bride's grandmother, relative or special friend.
Should not attend all female showers or fittings of the bridal gowns.
Dances with the other attendants during the first dance.
Additional tips for the bridesmaids