Maybe during the age of thoughtless kids, when invigorated hormones are being pumped in and out, sex is on every ones consideration. But as one matures (mind you that does not mean growing old and gray) sex takes the back ottoman and mutual help, likes and dislikes, cooperation, caring and apportioning come to the forefront. We start consideration about building up a world of our own and we need someone to share it with, and not just someone to sleep with.