My classmate's skirt is too short, and every time she moves, it flutters, revealing everything to the back! And then, to my surprise, it's a thong that makes my heart race! The plump thighs created by her knee-highs and the thong digging into her buttocks are exciting me! It seems like she's deliberately showing off to me and enjoying it, satisfying my desires with her thighs and buttocks!
