plz help

im literally in class and my parents do the dirty and I heard EVERYTHING (I heard a bit too much ╥﹏╥)and im literally RIGHT NEXT TO THEM and when my mom came out I tried to play it cool and put headphones and pretending to be listening to music. and now she sittin right next to me as if she didn't get railed so im feeling sick now and wanted to know other people traumatizing stories :)