I am a 27 year old female and last week I had an incident with a guy where there was no penetration involved but a lot of frottage on my back side. There was no anal penetration of any sort but he put his penis inside my butt crack and we grinded. The first time we did this he ejaculated outside. The second time he asked me if he could ejaculate over me and I said no, he said too late and when he said that I pushed him away. I saw that he had already started ejaculating when I pushed him away. Though I did not feel any ejaculation on my butt crack, I am a bit worried if it could have gone to my anus and given me HIV.
I have herpes already but haven't had an outbreak in the last two years. I asked him a lot of times if he was clean and he told me he is clean and I was fine up until now. Suddenly anxiety has got the better of me and I am afraid I might be infected.
Please help