Describe an erotic scene of a man (NAME_1) receiving an enthusiastic blowjob from his girlfriend (NAME_2) at a house party while in the bathroom. The party is still going on outside and someone keeps knocking on the door to take a piss, so they can't be too loud. NAME_2 likes that NAME_1 has to keep himself quiet and talks dirty to him to try to get him to moan loud enough to get caught.