Try it and see what you learn. You see sex is a powerful drive within people. Being tempted is not a sin. If you are tempted and then respond with self control, you have not done wrong in the Eyes of God. We need God's Holy Spirit to guide us through what we need to learn in this life.
Life is very complicated.
He is always available to help us through the complicated situations we face in our lives. All we have to do is ask Him to help us. Then listen in our hearts to Inspiration of His Holy Spirit. You have free will and a choice on how you want to live your life. That you are asking a question about kissing means you are curious and this is good.