last threeweeks I was dating a guy and we didnt have sex. We were only kissing and last week he told me that he wanted me to fist him and it was the only way he wanted to make sex. I practiced that for first time . I didnt wear glove or something like that and we did this for several days .Suddenly he disappeared and that frightens me. We also had blow jobs and kissing . I dont know if he is possitive but I am scared cause he doent answer my calls. Do you think I must go for a test?