Lately, my girl doesn't want sex as much as she used to. We've been together two years. It takes longer to turn her on. What's happening?

You need to work to keep sex good over the years. It’s easy in the early days because it’s all new and exciting so she’s pretty constantly turned on. Once you get to know each other, especially if you live together, then you tend to get complacent and not do what it takes to get her in a mood where she’s receptive to sex. Generally that’s the same stuff that worked in the beginning – lots of positive interactions, lots of anticipation, lots of new activities, lots of fun, and lots of treating each like lovers all the time. Try that and see how she reacts!