It is largely physiological with me, too. I enjoy the emotional aspect of it but even in the absence of that, I would still seek out sex frequently.
Having said that, though, I doubt I could have sex repeatedly with someone I don't like. I could do it once but I most likely would not want to repeat the experience. I find it so much fun that I wouldn't want to sully my good memories of it by engaging in an encounter with someone who was a turkey.
I wonder how they came to that conclusion about the seeping in factor. Did they have a test group that had sex with condoms and compared it to the seep group? Interesting. I know I am in a much better mood the next day, for a variety of reasons, most of them physiologically based. I am also in a better mood after I eat so there must be a connection in HD people of mind-body happiness.
