I love the comfortable warmth and weight of a body on mine. Can stay there for hours. But I love even more the exact moment when you become aware a cuddle is going to become much more. When the mood of your lover subtley makes the turn from lazy comfort to aching need. When desire starts to creep in. No words are exchanged. No overt signal required. Is it a slight increase in heartrate or body temperature that is detected? One moment you are comfortably watching a movie, half asleep, but the next - every tiny movement every minute body shift explodes across your mind with increasing urgency. So delicious. Anticipation.