How long should a person wait before deciding to have sex with their partner? It wasn't too long ago when answering this question was quite simple, and for some it may very well still be. Many people believe that a couple should only engage in sexual intercourse when they are legally able to, which is of course when they get married either in church or in court. Others believe that once they get to know a person well enough then it is okay for them to engage in such activities and there are some out there that believe that as long as you know the person's first name then it should be okay. So ladies and gents how long do you think a couple should wait before getting down to business?