The deeper the love and the greater the trust for one another, the farther you want to venture with that person. The more you crave to pleasure them and by pleasuring them, you pleasure yourself.
Communication is a critically important necessity between partners. The ability to feel safe and comfortable with one another should be the central focus.
"Making love is meditation. It is sacred, it is the holiest of holies. So while you are making love to a man go very slowly... with taste, taking in every flavour of it. And very slowly: there is no hurry, no need to hurry; enough time is there." Osho