Both, It doesn't always have to be a spirtual event. Sometimes it's just fun.
Like Jim says, it can be either.
Love and commitment. No question.
Maybe not love and commitment necessarily but it has to be a person that means something to me and not some random woman. The pleasure part is not that hard once you get experience.
It can be either or both, but if you experience neither you better get the hell out of there. Ha!