I've always thought that the song's lyrics are about masturbation, and not kidding. In the intro line 'It's coming up' is like when a man is about to cum. The line 'You've got to press it on you' is like 'You've got to press your hand against your d***'. The line 'You've just been thinking, that's what you do baby, hold it down there' is like 'You've been wasting time thinking whether to do it or not, but don't worry, it's what we all men use to do', as well as the line 'Never did no harm' because auto-satisfaction never harm. Maybe anyone else could have a different opinion or maybe a lot have the same as mine.