When my classmates found out my older sister existed, they suddenly started saying, "Let us touch your sister's thick, juicy thighs, lol," and forced me into an agreement against my will. I nervously told my beloved sister about it, fully expecting her to reject the idea—but she simply replied, "Sure, that's fine." What the hell? Letting a bunch of random underage brats freely touch her thighs? That's completely unacceptable! I honestly thought she'd refuse right away, but I was disappointed to discover her sense of chastity was much looser than I'd imagined.