Sometimes I can get really wet and other times i wanna have sex but my body just doesn't respond. The inside of a vagina is very soft and sensitive and needs to be ready before having sex. If your not properly turned on you will find it hard to get wet. foreplay helps a ton when you in that desert stage. Another thing is if you don't feel well or your mind is getting easily distracted by other things it won't connect pleasure is going on to your vagina making it unresponsive. You can also masturbate a little or have your partner do it to how it feels right for you this can get the ball rolling a little faster. Please Please Please don't have sex dry. It can tear and rip the tender walls of your vagina.