We have something called self-control. It's not like either one of us couldn't have had sex already. We do have that passion, but we know that God says that we aren't supposed to act on it yet.
My girlfriend is coming up to visit me and she is obviously staying in my house (I still live with my parents since I'm in college). Can we share a bed when we know we're not going to be having sex? We have already said that is off the table and we know we're saving ourselves for marriage.