I once watched a show on Oxygen that suggested that if this were to happen, keeping tissues bedside for quick clean up, and turning on a fan for some dry up, while enjoying intercourse, could help.
But, if this doesn't sound like the route you're looking for, trying some kegal exercises (the exercises to tighten the vaginal muscles after child birth) may help to tighten the vagina enough to heighten the pleasure of the feeling of the penis entering.
If neither of these work for you, try rubbing your clitoris before sex. You will still get an orgasm (though a different kind) but having an orgasm may help your body to slow down the secretions as it has already had some sort of satisfaction.
I hope this helps you on your way to a happier sex life and a healthy libido.