"I've never done this before," she whispers, her voice barely audible over the pounding of their hearts. He responds, "Neither have I," as he slides his cock into her ass. It's tight, and they both feel a thrill at the taboo. She looks back at him, her eyes wide with surprise and pleasure. He leans over, kissing her neck, as they grind together, their bodies slick with sweat. The room fills with the sounds of their pleasure, the smell of their sex, and the soft, wet sounds of his cock sliding in and out of her ass.