If you're in middle school or high school, I would like to suggest that it's rather soon to be dating someone exclusively. That said, congratulations on being able to actually discuss sex. I'm amazed at the folks who never say the word s-e-x, but seem to fall into having it, despite their silence--or perhaps because of it.

It requires a great deal of self-control on both sides of this equation to achieve balance. The more "passionate kissing and making out" you enjoy, the harder it is to put on the sexual brakes. That's one reason I'm interested in your age--because your brakes will need relining several times if you're in high school. You'll be smokin'.

So--what to do? Learn to do the things that will sustain your relationship--and your marriage. Learn to enjoy activities that seem to have little to do with sex (what COULD those be?) like participative sports, hobbies, cultural events, hiking, concerts-- the more they're with groups of people and right out in the open, the better. Then making out is less clearly an option--or even on your mind.  Explore getting involved in your parish youth ministry or campus ministry programs - being around your peers who share similar values can help you as well.

Because when two people become intimate in the ways you have described long, long before they can consider marriage (and marriages are occuring later these days, rather than earlier), the harder it is to keep the grand finale under wraps. However significant, it's just one part of a great relationship and a happy marriage--so you have lots of exploring to do in areas not involving sex. Be about that.

This demonstrates your good will and your sincerity--and I think God is especially gracious with assistance to those who know how to plan well themselves!