Me and my girlfriend had anal sex and she was on her period but it went away for about an hour while we were doing it,the came back after she left. I didn't ejaculate at all and she covered her vagina with her hand and said my penis never touched her hand at all and after we were done I made her wipe everything with toilet paper just to be safe. My only concern is pre cum,and she also said she just grazed over her vagina with the paper towel but didnt penetrate it at all help!