Gay Groom in a White Tux

This is a trope about fictional portrayals of gay men's weddings, in which one of them will invariably be wearing a white tuxedo, and the other a black tuxedo. The reason for this trope is that a white tuxedo functions as a man's take on the bride's white dress. Sometimes, a Gender Flip will be seen in which two women marry and one of them, usually a Butch Lesbian, wears a black tuxedo or skirt suit while the other, often a Lipstick Lesbian, wears a traditional wedding dress.

The trope can carry the Unfortunate Implication that the partners are being/going to be shoehorned into the same roles and dynamics as a stereotypical heterosexual relationship. Many gay couples in Real Life avoid this simply by dressing the same or at least not following the black/white dynamic. But since there's no clear-cut image in the mainstream consciousness of what a gay wedding is suppose to look like, such couples arguably have more freedom than straights in picking and choosing which traditions to keep or discard.

Anime and Manga

 * The gender-flipped example in Rental Magica is shown in the episode titled "White and Black Dresses". Justified in-universe in that they're colors associated with the brides's magical traditions.

Comic Books

 * Midnighter wore a white version of his costume when he married Apollo in The Authority. They also tend to be drawn in outfits like this in fanart, but with the colors reversed, since their uniforms and white and black.

Film

 * Sex and the City 2 uses this in the wedding of the main characters' two Gay Best Friends.
 * I Now Pronounce You Chuck and Larry
 * Strange variant in the The Rocky Horror Picture Show, when a wedding march plays and Rocky and Frank N. Furter walk off to Rocky's room together. Frank N. Furter is wearing female lingerie, and Rocky is wearing male.
 * In Baby Mama, a small child asks what a lesbian is and is told it's "a woman who wears pants to her wedding."

Live-Action TV

 * Noah's Arc: A variant in the movie, the tuxes are light gray.

Western Animation

 * Subverted in South Park: Big Gay Al and Mr. Slave both wear dresses when they get married.