Well, yes you can make love without doing anything more then looking into each others eyes. To me, nothing is more beautiful then a person's soul, or the inner person if you will.
But I do believe pigglet is correct. It will come down to a personal idea of what intimacy is. Just because I think looking into my wife eyes is just as exciting as have sex with her. Doesn't mean she feels the same way. Allot of my erotic writing centers on that intimate feeling that two people can have. And I truly do feel that it is much more erotic then the actual love making at times.
And yes pigglet, I do quote Shakespeare, but I don't play the lute.