During Forplay I Can Feel Sperm Already Building Up By

During forplay I can feel sperm already building up by the head of the penis so I rarely enjoy sex do to lack of orgasm, it just kind of shoots out at any real attempt to get in a motion.. Another odd thing is that if I masturbate before hand, it still does this yet if I'm lucky enough to get a second round or keep having sex in a couple hour intervals, I don't have issues. Something just doesn't seem right