I'm DISGUSTED of , what should i do?

Well if you feel really negatively about it then stay away from it and don't do it. If somebody doesn't respect your feelings and decisions and forces you or tries to talk you into it then kick them out of your life. To me I think it's disgusting too. There's urine, semen and sweat down there and who knows if the person washes on a regular basis? People will say anything to get people to try and do oral so don't listen to those selfish twats and do what you feel is best for you.