Fawn grinned as she heard her brother's exclamation. This felt so good and she wanted more. Fawn started to rock against him once more, but the way her skirts had bunched around them, it wasn't the same sort of friction she had before.
Without really thinking about what she was doing, fawn reached to the tie of her skirt and immediately undid it and pulled it down until she could kick it away, leaving her in the lacy white panties that had matched her bra.