In a private, intimate setting, a girlfriend bares her ass, eagerly awaiting her boyfriend's touch. He obliges, spreading her cheeks and running his fingers along her asshole, feeling it clench and relax. With lubricant applied, he pushes a finger inside, feeling her tightness. She moans, encouraging him to add another finger, stretching her asshole. He then replaces his fingers with his cock, slowly pushing in as she gasps, feeling every inch of his thickness filling her backdoor.