Lie on your back with your legs over his shoulders. He kneels in front of you (as he damn well should) to slide in. The twist: he holds and lifts your bum for some good for support -and just because it feels good. If he's the type to suck your toes, he totally should, because that %R@# is good.
2. The couch twerk
Sit on his lap, facing away from him, with your legs outside of his. Sit back on him to take him enjoy that #deep #penetation. Wiggle your hips around to get yourself situated (and also just because). The twist: lean forward and put your hands on the floor. Just a heads up that this only works if you're A) kinda flexible and B) willing to give him a big ol' up close view of your bum.
3. The upside down cake
When you just need something...different, it's time to bust this move. Get on your back. The twist: flip your legs back over your head like the yoga plow position, then bend your knees so they're on either side of your head. Have him do a slide grind instead of fast thrusting and tuck your chin into your chest so you don't break your neck and, you know, die.
4. The fire starter
Lie face down with your hips at the edge of your bed while your partner holds onto your legs. The twist: he lifts your hips off the bed (pick a strong dude for this one.) Arch your back, so your belly is closer to the bed and your pelvis is tilted toward the ceiling. Add some deep Kegel squeezes into it and you'll discover all kinds of underserved areas that should be serviced at once.
5. The double knot
Lie on your back with your legs slightly spread. The twist: your partner lies on you diagonally, like an X, letting your legs intertwine. Roll your hips against each other to discover new sensitive spots, plus, the indirect stimulation will make it last longer, which is a bonus.
Uh... interesting moves, aren't they? So why don't you guys give it a try and see how it feels like -but always remember to play it safe!