My friend and I did dry humping (where we rub our private parts against each other) on 11-08-19 and on 12-08-19 she observed that her frenulum of clitoris had bruises or where the two upper labia minora meet had been torn from centre. She is feeling pain at that point and difficulty in urination. Also her whole vagina from outside turned black. She also has a stone in her left uterus. We did not had sex.