Sex

While taking notes in class, something that was brought up by our professor sparked some interest in my mind.

We were discussing the act of having sexual intercourse with someone. Someone that is having sex with another person is not really acting out of good will because they are trying to obtain some pleasure from the deed and are acting entirely out of self-interest. They may be having sex in order to procreate, however, they are seeking out the pleasure they will obtain from it by doing said act.

Now the question that came to mind when taking notes was one could argue that a necessary need of human beings is to be happy. Happiness can lead to a prosperous life and an all around better disposition about things. One could argue that happiness is necessary for life, therefore it is necessary for someone to possess goodwill. Then, with all of that considered, what if you have sex to make yourself happy? Then are you acting out of goodwill even though it is entirely for ones self-interest?