Erotic instructions: Have your guy lie back with one leg outstretched and the other bent, so his knee is pointing upward,explains Helen, 28, who tells us she created this with her partner after becoming bored one night with standard woman-on-top. Facing sideways, lower yourself onto his penis and hold on to his bent knee for leverage. As you rock back and forth, lean far enough forward so your joy button rubs against his inner thigh.

Pleasure payoff: This torrid two-in-one move makes you the center of amorous attention: The steady thrusting plus constant clitoral contact against his inner thigh will prime you for a big O, Helen says. And with his leg right there to balance you, you're free to really let go and grind in wild motions. Of course, there are booty benefits for him too. Thrill him by taking a break from thrusting to squeeze on the nerve-rich head of his penis. Or reach between his legs to massage his testicles and perineum (the supersensitive area between his balls and behind).