God created sex; He pronounced it good; it is for the benefit of both the man and the woman; and it is righteous and holy and intended for joy. It is one of God's most wonderful gifts to us. It can be one of the most thoroughly enjoyable aspects of marriage. “Let’s start over with sex.”
There. I gave you a way to start the conversation.
Good sex has three elements:
The vast majority of couples go into marriage completely clueless about good sex. Sure, they might have something they call “experience,” usually from hurried couplings in illicit relationships. Sorry to be so blunt, but I have listened to these girlfriends, and while they might be attracted to you, the sex itself is not attractive.