Can you create sexual chemistry?

I've seen lots of threads about bad marriages and sexual infidelity. It seems a lot of times the reasons the partners stray is due to bedroom boredom. I want to avoid this since it's wrong to cheat and it doesn't seem anyone ever ends up happy. I have a good marriage to a loving, kind man. We never had sexual chemistry but we do have strong affection to one another. Can one create sexual chemistry in a good marriage?

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