As parents, we need to do everything we can to encourage coed groups doing things together rather than intense couple activities. Ask the right question. Like a competitive runner saving reserves for the end of the race, pace yourself physically. The run to the wedding night is too long to use up most of your physical expressions too soon. Decide in advance.
Glands make terrible decisions.
Make each expression meaningful. For some, holding hands or a good-night kiss are throwaway stuff, given carelessly. In today's sexual rush hour, young people rapidly use and devalue little languages of love that could have said so much. A Model Worth Waiting For Children need to see parents who still love each other, touch each other, find each other exciting. Society's propaganda portrays that all the physical excitement is either premarital or extramarital.