For me kissing is irrenunciable. I'd spend hours kissing in the rain, or just in any place, with my love. It is one of the most intimate forms of contact (do you remember Pretty Woman? No kisses) and for a love and tenderness prone guy like me, it is just the top.
When I kiss i feel tons of different and wonderful sensations, like flying and breathing pure air, like the best tastes and smells I have ever ried, like all of my body is shaken by a nearly unsustainable freshness and lightness.
I could go on but I think you got the point.