if ako ang mu define, having s*x only means physical gratification. It means any guy will do, as long as maayo siya in bed diba.
But making love is different. Its an expression of your affection for your partner. Theres no one else you wanna do the act with. You do what you can to satisfy him, and he does the same for you.
I guess idealistic kaau ko, but i see making love as something beautiful, something shared only by two people in a committed relationship.