In a separate room, another girl, intrigued by the smooth, rigid feel of a wooden ruler, decides to experiment. She begins by running it along her inner thighs, her breath hitching as it brushes against her damp folds. She gasps as she slides it inside, the cool wood contrasting with her heated core. Inspired, she invites her friends to join her, passing around the ruler and other hard, smooth objects. They moan and writhe, their bodies glistening with sweat and juices as they explore the boundaries of their pleasure, their giggles turning to cries of ecstasy.