If you goto Deep Jungle,go in the tent stand next to Jane.(on her left)Zoom in where her skirt splits and you can see her underwear!XD
At the beginning at destiny Islands go get that barrel carry it to the dock where Selphie is sitting.Put the barrel infront of her stand on it and zoom in and you can see her underwear as well.
Trust me when i tried these i nearly fell of my bed laughing.My friends saw it too.