My girlfriend seems to be struggling with this question. Or rather I am struggling with her answer to this question. She seems to think of sex as purely gratuitous, as a favor to me that she derives no pleasure from, despite my honest efforts to satisfy her. I guess I could just give up on sex and go back to masturbating only, but I prefer it to be a multi-player game. Giving her pleasure makes me feel good, and it's something that I want to do. She, on the other hand, seems to see sex as a chore. Even if she gets off, it's no better than if she was alone. Is there any way we can agree on this?