the "straight" girls in the class

when several girls in you're class go in to a small bathroom in school and come out laughing or clapping their hands

Boy1: hahahahah you girls are so lesbian for going in to that small bathroom
girl13: NO, we where only talking
girl9: yeah exactly
girl3: YOU KNOW WE ARE STRAIGHT RIGHT?
boy3: yeah yeah, you're the "straight" girls in the class