So has sex become boring for you two, or has it cooled off and become less frequent than when you first got together? Both situations are totally normal for long term relationships, but you didn't offer much detail in your OP. What is wrong with just jumping him? Are you having difficulty getting turned on, or is he not initiating sex enough, or what? There are SO many ways you can improve your sex life, but it would be helpful to have more details from you before offering ideas of how you can solve the problem. What options have you tried to spice things up that haven't worked? What did you used to do in the past that did work to spice things up?
"Caring is not an advantage."