I'm a firm believer in sex (before marriage, after marriage, during marriage, insteed of marriage, etc.)
Things were created for a reason. You'll never know until you try. What's the point of waiting if it's available for you. You only live once. And what happens if you get old without every trying it? You'll regret it forever.
Apply this to anything: sex, drugs, love, skydiving, running, dancing, water sports. Don't knock it until you try it.
By the way, I'm a try-sexual. I try everything at least once.