In a cramped, dimly lit room, the bashful boy pushes his girlfriend onto her hands and knees, her ass in the air. He spreads her cheeks, revealing her virgin anus, and tentatively prods it with his cock. She pushes back, encouraging him, and he slides in, gasping at the tight, new sensation. He starts slow, but soon his hips are slapping against her ass, fucking her hard and deep, his balls slapping her clit. She cries out, her ass milking his cock as he bursts into her, claiming her backdoor in a messy, passionate first time.