by Judy Sure, you know a thing or two about how to lock lips with your guy. After all, it's been part of your sexual repertoire ever since the days when you called it making out, right? But if you're not using your mouth to its maximum potential, you're overlooking your most potent erotic power tool �?the one that makes him hot in spots he didn't realize he had.

"Your mouth can deliver an incredible range of sensations," says Shelley Hess, author of Pucker Power: Great Kissers Make Great Lovers. Apply a naughty nibble, a barely-there brush of the lips or a tantalizing tongue wiggle to the right area of his body and he'll hit the ceiling, thinking, "Wow, how'd she do that?"

Ready to get that reaction from your soon-to-be-very-grateful guy? Below you'll find 13 truly incredible kisses that utilize your lips, teeth (gently), tongue and a combination thereof to the fullest on the places all over his body that will appreciate these moves most.

The Ear-otic Energizer
The ear is designed to pick up the subtlest sensations, so if this is one way you want to send your guy skyward, remember that less is truly more, says Sándor Gardos, Ph.D., sexologist at Mypleasure.com. Place your lips an inch away from his ear and release a slow sigh, which will tantalize his nerves without going overboard. Then take his earlobe between your lips and gently tug. This will pull at, and indirectly stimulate, the nerve endings inside the ear. "These nerves are almost never stimulated, so you'll really blow his mind when you do this," says Gardos. Awakening this new erogenous zone will send sexy shivers rippling throughout his entire body.

The Very Handy Kiss
If you think kisses on the hand are more innocent than those bestowed on other parts of his body, you haven't tried this one: Place the tip of your tongue on the webbed area at the base of his fingers, then slowly slide your way up the side. This move will give him goose bumps because this area is very sensitive but, like the nerves of his inner ear, rarely gets much attention, says Olivia St. Claire, author of 302 Advanced Techniques for Driving a Man Wild in Bed. Then, to make him completely crazy, take the tip of his finger between your lips. "It's suggestive of what I could be doing down below," says Fran, 39.

The Roof Raiser
So you figure you've explored every inch of his mouth with yours? Truth is, the one area that's often ignored is the roof of his mouth, which is one of the most ticklish parts of the body, says Hess. So the next time you're lip-to-lip, flick your tongue once or twice in an arc along this area (any more might send him into a fit of giggles). Katrina, 33, has found that this move works wonders on her husband. "When people kiss, they always go for the tongue," she says. "But the first time I ran my tongue along the roof of my husband's mouth, he was like, 'Whoa!' Now I know that if I ever want get a rise out of him, that's what I need to do."

The Barely-There Kiss
Full-on mouth-to-mouth action isn't the only way to make his toes curl: A light hint of a kiss is more potent than you'd think, especially when you try it on delicate areas, such as his face. So gently graze your lips (keeping them as dry as possible) across his forehead, looping slowly over to his temple and then down to his mouth. This dry brushing, as Hess calls it, will have a completely different feel from the usual wet kiss. That's because the face is covered with nearly invisible fuzz called vellum hairs. A slight, subtle touch will activate these hairs, inducing sublime shivers.

The sweetness of this kiss will also strengthen your emotional ties to each other, says Nataly, 31. "It's tender but sexy, and it always makes my husband smile," she says. Which means that a kiss like this says, "Let's get it on" and "I love you."

A Naughty Neck Nibble
Few kisses establish an I-want-you-now connection like ones on the neck. To take the passion level up a notch, gently pull his head back and to the side, which will expose an extra-sensitive tendon running from the ear to the shoulder, says St. Claire. Starting at the base of his ear, work your way down the ridge, randomly alternating between small nibbles and gentle kisses so he won't know what's coming next. Sheryl, 39, found that just a few well-timed nips add a devilish streak to the usual neck nuzzling and really get her husband's pulse racing. "I mix it up: Sometimes I kiss-kiss-bite or kiss-bite-kiss," she says. "He finds the surprise mix of tenderness and toughness really exciting."

The Tongue Tango
If he thinks he's seen (and felt) it all, show him how wrong he is by using the underside of your tongue. Its silky texture will feel so sexy on his most sensitive spots �?namely his nipples, an often ignored erogenous zone on men. "Although many men are embarrassed to say it �?because it seems like something only women should like �?they secretly crave to have you pay attention to this area," says Gardos.

So flick the bottom part of your tongue from side to side across these sweet spots. Then, as he gets into it, throw his senses for a loop by switching to the rougher, upper side of your tongue, alternating back and forth. "Nerves tend to go numb when they receive the same type of stimulation for too long," says Gardos. But when you switch from one type of texture to another, you'll keep his senses on maximum alert �?which will keep him begging for more.

The Thigh Rise
If you want to get his mojo rising long before you hit X-rated territory, head for his inner thigh. Starting right above his knee, plant a light-as-a-feather kiss there, then work your way up, increasing the pressure of your lips on his skin the farther you go. That's exactly what Lisa, 36, does to get her husband primed for passionate lovemaking. "Women typically think men don't like foreplay, but my husband loves this," she says. "And sometimes I'll prolong the agony by starting over again down at his knee. He goes crazy with anticipation."

The Hot-and-Cold Caress
This smooch will fire up an entirely new set of nerve endings, and all you need is a cup of coffee or an iced drink to do it. Take a sip, then press your hot (or cold) lips to his inner wrist, planting little kisses up the inside of his arm. "The veins are close to the surface in this area, which makes it especially receptive to touch," says St. Claire. Plus, you'll be stimulating both temperature- and pressure-sensitive nerves, creating a whole new dimension of sensations, says William Cane, author of The Art of Kissing. Liza, 31, stoked her husband's sex drive with an ice-cold kiss during a picnic one day. "It was really hot out, so I drank some some ice water and then reached for his wrist," she recalls. "He loved it, especially since I almost never use props during kissing. The creativity was sexy in itself."

The Tummy Tempter
Between your man's navel and his nether region lies a strip of hair known as the "treasure trail," so named because of its sensitivity (not to mention the fact that it leads right where he's dying for you to go). Want to show him just how prizeworthy this trail really is? Starting right below his navel, take some strands between your lips and pull �?just hard enough that he can feel it, but gently enough that he's not jumping out of his skin. The pinpricks of slight pain you'll create will send jolts of electricity throughout his lower abdominal region, and even register below the belt.

"Light hair pulling indirectly activates nerves deep beneath the skin's surface, which is something straight skin-to-skin contact can't do," explains Gardos. Plus, the downward direction you're heading in will make your man's imagination run wild with hot 'n' heavy possibilities.

The Spine Chiller
If your husband enjoys back massages (and c'mon, what guy doesn't?), he'll really like this no-hands variety. Straddle your husband as he lies on his stomach, and then press your mouth firmly into the nape of his neck. With your tongue flexed so it's pointy, probe the grooves on each side of his vertebrae, slowly working your way down to his tailbone. "Essentially you're giving him a shiatsu massage using your tongue instead of your fingers," explains Hess. If massages usually lull him to sleep, don't be surprised if this one has quite the opposite effect. When you use your lips instead of your hands, your massage instantly goes from relaxing to racy.

The Hot Hummer
Letting loose a sensual moan while you're putting your mouth to work anywhere on his body (but sensitive parts in particular, like his inner thigh or the inside of his arm) not only sounds darn sexy, it can also create a totally new sensation he'll get addicted to real fast. "Humming causes your mouth to vibrate in a way that feels similar to sex toys," says Gardos. (If you think only women enjoy vibrators, here's a news flash: Men like what they do, too.) Plus, varying the pitch of your voice creates a range of sensations: Lower pitches create slower vibrations; higher pitches, faster ones. "My husband not only likes the sensation, but hearing me moan lets him know I'm really into it," says Sheryl. "And that gets him more turned on."

The Knee Nuzzle
Talk about making him weak in the knees: This area is one of the most underrated erogenous zones. "The knees are full of nerve endings; that's why people are often ticklish there," says St. Claire. The backs of the knees are especially sensitive, since the nerves are close to the surface, she adds. For maximum sensual impact, swivel your tongue along the crease and then blow on the area. This puff of air will cause the moisture to evaporate, producing a thrilling hot-then-cold sensation. Plus, he'll be able to actually feel you breathing, which will tune his body in to yours and take the intimacy between the two of you to new heights.

The Double-Lip Lock
Add a sexy twist to your usual smooch by taking just his bottom lip between yours and sucking on it gently, which will bring more blood to the surface of his skin, making this area even more sensitive, says Gardos. To get him in on the act, have him suck on your top lip while you're working on his bottom one; then switch. "A lot of guys know only two kisses: the lip kiss and the French kiss," says Cane. "This is something completely different, and since you can switch roles, it never gets monotonous."

Liza first tried this kiss after reading about it in a romance novel: "It sounded so sexy that I made a note to try it one night. When I did, I could tell my husband liked it because he started smiling," she says. "It feels playful and fun, and it's a real bonding experience."