Sadly I don't exactly have any tales like that where it was completely out of the blue, but I do know that amazing feeling of the girl letting you know you're about to get lucky when you had no idea sex was on the cards.
My favourite was when I got "the lady" back to the flat after drinks and a main course in the chain pub down the road, and I had put a cheesecake in the fridge just in case we had fancied a dessert but on the way home popped into Tesco for a couple of essentials and I bought some triple choc cookies. She disappeared into the loo and I shouted from the kitchen "I really don't know.... should we have cookies now and save the cheesecake for a bit later, or just have cheesecake now and there's still cookies later if we want them?" She just shouted back "Do you not want to have sex, then?" I swear, my jeans just FELL down. I didn't even touch them, just subconsciously WILLED them off.
I don't remember if we ate the cookies or the cheesecake first. But I do remember the first thing I ate. :lick: