Girls bathroom had a sofa with no arm rest ironically made of pleather. >lay girlfriend on her back by the edge >(assuming she is in a dress) push the skirt of the dress up or even remove it >kneel down >prop her legs on your shoulders (with her knee joint on top of your shoulders so the lower part of her leg rest on your back) >have her arch her back, while thrusting her pelvis forward >use left hand (or right) to pull her underwear to the side >commence eating [spoiler]Sorry for the late reply![/spoiler]