If you're male, your body may not be producing sperm yet. If you're a female, it could be that you're not hitting the right place. For both it could be stress.It's possible you have not reached that...
Yes, the boys 'cum' which is semen contains sperm and prostate fluids. (sperm causes women to get pregnant, prostate fluid has sperm live and makes it easier for them to move.)
Women's 'cum' is...