Strapless Dark Red Lace Mermaid Wedding Guest Gown MSJUHEG Wedding Guest Dresses For Women Red Dress Womens Deep V Neck Plus Size Evening Dress Long Sleeves With Belt Women'S Formal Dresses Red 3Xl Walmart.com Late Summer Early Fall Wedding Guest Dresses See (Anna) Jane. Red wedding guest dress? Only rule stated was cocktail dress. Got this for $5 and honestly had no idea of the red = mistress thing. Thought it was a classic dress and Amazon Fall Wedding Guest Dresses Straight A Style Wedding Guest Dresses Ruffled, Floral, Maxi and Midi Dresses Shop the Mint