Breastfeeding and bitting ??

Jennifer
My son is 6 months today and he has 2 bottom teeth well lately he has been bitting my nip and pullin bak or slidin my nip over his gums scraping me. Its hurting i tell him no but he continues to do and thinks it funny. I beed help anyone had this happen to them. If this continues i will have to stop breastfeedin sooner than i thought