The earliest commercial anywhere worldwide to show a gay male couple together is this one from Denmark, directed by Danish director Lars Von Trier ("Breaking the Waves", "The Idiots", "Dancer in the Dark").
Cooking a romantic meal at home, one drinks a glass of wine and looks on lovingly at his partner, who is cutting vegetables as he prepares the meal. No longer able to resist, his partner grabs hold of him and begins kissing passionately as the food cooks. They even shove many of the vegetables on the floor, jumping onto the counter top in their heat of the moment.
Then, as they're kissing, one of them asks the other if he'd forgotten the spice thyme -- as they look back at the newspaper where the recipe is printed.
Newspapers as a category of advertiser have lead the way in many countries for gay-themed ads, including Brazil and Canada.