Checkpoint15's tutor, Antor321, has a unique teaching method. As he struggles with his algebra, she suggests a break, her eyes gleaming with a mischievous intent. She pulls out a strap-on, her intention clear. "Let's practice a different kind of addition," she purrs. Checkpoint15's eyes widen, but his cock hardens at the suggestion. He turns around, presenting his ass to her. She lubes up, her fingers teasing his hole before she slides her strap-on inside him. She fucks him slowly, her hands gripping his hips, her breath hot on his neck as she teaches him the art of pleasure and pain, his moans filling the room as she whispers, "The answer is always anal."