A girl was trying to reach a book on a high shelf and stretched her back, revealing her panties from under her skirt. I couldn't keep staring at them, so I decided to help her, but this caused her to lose balance and she ended up straddling me. She didn't panic or try to get away from me; instead, she clung to me even tighter. Seeing her behavior, I lost control, hugged her tightly, kissed her, made her give me a blowjob, and then inserted myself into her in the blind spot of the quiet library! Driven by desire, I started thrusting my hips, and she also moved her hips more vigorously to encourage my ejaculation. In the end, I ejaculated inside her with such force that it seemed to reach her womb!
