I honestly have a hard time cumming and I would like to know if there is anything i can do. I can always do it by laying on my back and tensing up really hard. I can't cum during sex unless on my back doing this. I really would like to be able to blow standing up more easily and sitting, etc. It is possible but i really have to work hard at it and its almost not worth it. If i use an anal toy i can usually do it.