Hi Betty,
I understand the way you feel. Having sex just because you're horny won't give good results, you may have an orgasm, but don't you think you really have to be careful in your choice of the man who gives you this pleasure?
We are basically animals with animal instincts, but God gave us free will to do the right thing and that sets us apart from the lower forms of animals. You are acting and talking like you are one of those animals.
If you freely have sex with any man , then you are inviting trouble. Contracting STD's is one form of punishment for some of peoples craziness and indiscretion. Can't you wait for a nice compatible man who will give you pleasure with exclusivity, not worrying of getting STD's ? someone who will make love to you because he truly cares and not just use your body for his sexual pleasure? someone who will respect you and take you as you are and won't take advantage of your horniness?
Think about this, I am just giving an advice as if I'm giving it to a sister, with no malice or judgment.
Take care.