I always get called lesbian help

Okay so I'm 14 and I'm always with myfriend her name is Chelsea I'll just say she's kinda annoying and I don't really like her sometimes and were we live it's the kinda area were everyone knows everyone we always get called lesbians and it really annoys me because we're genuinely not if we were it wouldn't annoy me but tonight we were out and we were walking home and a group of girls from my school and boy came up to us and were chanting at us calling us lesbian I'm really upset help how do I stop then calling me lesbian