By a staff reporter : Want to try something a little more advanced? Got a pair of stairs in-between-rooms or floors? Stair sex may be the answer. You probably wouldn’t regard it as a conventional place to be intimate with your significant other, but you’d be surprised at how much fun it can be. You can play it safe by beginning your stair sex session at the bottom of the steps. So, if you do happen to lose your balance, the floor will be only a step or two below you.