James C. Dobson said this quote
“ 34. Sexual contact between a boy and a girl is a progressive thing. In other words, the amount of touching and caressing and kissing that occurs in the early days tends to increase as they become more familiar and at ease with one another. Likewise, the amount of contact necessary to excite one another increases day by day, leading in many cases to an ultimate act of sin and its inevitable consequence. This progression must be consciously resisted by Christian young people who want to serve God and live by His standards. They can resist this trend by placing deliberate controls on the physical aspect of their relationship, right from the first date. ”