By Laura Snyder

We all want "great sex," but that's pretty vague. And the definition can change depending on your mood and your relationship. And, here's the thing: all kinds of sex are important for the health of your relationship.

Much like you need to eat a variety of foods to have a healthy diet, you need to have a variety of sexual connections to have a healthy love life.

Are you getting all yours?

Sex Requirement #1: "We Haven't Done That Before" Sex

No matter how good your current routine is, every sex life needs a little excitement once in awhile. That could be as simple as changing the location, position or time of day. But it should push the boundaries of your current repertoire and, hopefully, make you feel a little of those old nervous butterflies you felt when you first got together. Not only will you have fun, you'll reenergize your sex life and build trust.

Sex Requirement #2: "Just Do It" Sex

Anyone in a long term relationship knows it's not all candlelight and soft music all the time (or even some of the time!). Having a happy sex life means sometimes you're going to have to do it even if you feel tired or fat or just not in the mood. Sometimes you need to think of it like eating your vegetables: do it because it's good for you.

Sex Requirement #3: "Not Quite Sex" Sex

Getting off is good (okay, great), but make sure you're having sex (or almost sex) that's fulfilling your emotional needs as well as just the physical ones. Take a night to do whatever it takes to feel closer - making out on the couch, telling secrets, taking the time to leisurely explore each other's bodies without the pressure of "performing."

Sex Requirement #4: "I'm Sorry" Sex

Why is make-up sex so hot? Because fighting leaves you feeling charged-up, but also a little vulnerable and raw - excellent conditions for intense sex that can help restore your closeness. The caveat? Don't pick fights just for the make-up sex and make sure you're not hopping into bed as a way to avoid real problems.

Sex Requirement #5: "Me Time" Sex

Don't save solo ex for dry spells or when your partner is out of town. It's got serious benefits to both you and your union, including better sleep, less stress and the kind of intimate self-knowledge that will help you help your partner please you. Plus, the more hot sex you have - even by yourself - the more you want.