Here, here, Julie. I've always said that nobody does anything for no reason, they are always getting something out of it. Even the most seemingly unselfish of acts are indeed selfish in that the giver gets some kind of satisfaction from doing it. Whether it's a charitable contribution, feeding a stray dog, doing charity work, putting their life in danger to protect or save someone else, watching their partner receive pleasure, or swinging however any other of the zillion ways there are to swing. Everybody gets some kind of reward in some personal way from everything they do. And who am I to judge why they do what they do.
Mr. WS