Ah, balls. Soft, warm -- though cooler, by 5 or 6 degrees, than the rest of his body -- and huggable. Balls can be tugged and hugged (or cupped at least). They can be gently finger-stroked in nice circular patterns or along the circumference of their egg divider. They like it. Sometimes they'll even pucker and smile. And there are many ways you can play with them while making love -- something to consider when you're getting into position.
Though some men may appear jumpy when you approach the sac of gold, this is probably not because you're hurting him, but because he doesn't necessarily trust you to know what hurts and what doesn't. For the record: Striking hurts. Tapping, slapping, kicking... most percussion is truly out of the question -- unless your man is into pain. Also, most sudden or heavy pressure -- a quick, sharp squeeze, a vice grip that won't let go. Big OUCH!
But if you navigate way clear of these tortures while you fondle his love nuts, your guy will start to trust you. Then it's mini-massage time, because gentle rubbing, while not necessarily orgasmic, feels real good. Hold his balls in the palm or your hand, cup them gently, and with a few finger movements, let them roll back and forth. This is a nice way to introduce your fondness for (and care of) his balls. It's also a way to stir him. Next you can lightly rub your index finger in circles over his ball sac. See if that makes him purr. From that pattern, you can switch to a linear pattern, as if you're painting stripes with your finger. And once you and he are comfortable with all this, here are some more tricks:
As this is delicate territory, yes, it is wise, at first, to check in with the man behind the sac, every time you change up your moves: "How does this feel?"
After the sac stretch above, squeeze his scrotum -- right there where his sac and body meet -- between your thumb and forefinger, then maintain the squeeze as you slide your fingers down his sac, away from his body until you've captured his balls at the bottom end of his sac skin. The skin should be taut around his eggs -- it may even shine. Many (not all) men love this feeling, love to have their ball sac stretched in this way when making love. So ladies, consider carrying this ball trick into your lovemaking by reaching between his legs while he thrusts, clasping his hanging ball sac between thumb and forefinger and sliding down the sac till you reach the top of his nuts -- then hold. An added benefit: many men find that holding the testicles down and applying some pressure in this manner can stave off an imminent ejaculation -- at least for a short time.
It goes without saying that you should enlist (or listen to) your man for feedback before, during and after ball play. Sensations and ideas such as these are going to strike each man differently. Lucky is the lady who has that kind of trust from a man and whose guy lets her try it all.
All this and we haven't even gotten to the mouth tricks yet!
Mouth tricks include licking and lapping. As you do so, you can feel the little nodes that dot his eggs like goose bumps. They're more hard and bumpy when he's cold or about to come; the skin is more wrinkled when he's warm and relaxed. Sac skin is made with extra wrinkles -- this is what helps his nuts resize to fit the weather. Cold nuts contract and come closer to the body (and become sensitive to a roving tongue). Warm nuts hang loose. And this loose skin can be taken between your lips and sucked, kissed and pulled.
Whatever their state and size, you can tongue sand them, like a cat, and tickle his fancy. You can catch his pubic hair between your tongue and lips, for just a tiny wicked tug, until you feel him shiver. You can lick along the raphe -- that little line that bisects his ball sac and outlines one pocket for each ball. In many a man, you'll find that tiny line quite sensitive.
Feeling musical? Hum on those marbles. That's right, either by planting your lips in a kissing formation or by enveloping his balls, ever so lightly, in your mouth, begin humming -- sounds closest to the "m" sound (as opposed to the "ahh" sound) are most effective (if you can form that sound with a wad of ballflesh in your mouth). If he likes this, he may be one of the men who enjoy a low vibrator, if not on the balls then at the root of the sac and on the perineum (between scrotum and anus). Consult with your man, and experiment.
And for the coup de grace on this arsenal of tricks, adopt the ball-mistress attitude: be experimental; be open to his suggestions; be gentle; be insatiable; and be willing to keep at it till you hit his golden nerve. So don't neglect those aggies. When approached with loving care, they like to get in on the foreplay. Stir all this wisdom up and you'll have his great balls afire in no time.