Trouble getting wet? *edited*

Does anyone else have this problem?

No matter how hard my BF and I try, I can never get wet-- it's not that I can't get turned on or anything. I get excited every time he even looks at me, much less touches me.

It breaks my heart that he thinks it's his fault, because honestly he feels like he just can't turn me on. But that's not it at all >.<

Edit:

No I am not on the pill! I also do not drink a lot of water at all, or anything else for that matter. Could that be part of my problem?