Positions, Please 3

Reverse Cowgirl
If your partner loves butts, he'll go wild for this position.  Reverse Cowgirl … or woman on top facing his feet … is a show stealer for men.  Watching your rear in motion as you take him this way will definitely score you high marks.
It's much the same as forward facing Cowgirl .  You control the depth of penetration and the speed of intercourse.  You can reach down and stroke his testicles.  His hands are free to stimulate your breasts, clitoris, and buttocks.   He can also give you a back rub or help your balance by gripping your hips or buttocks.
One fun thing to do during Reverse Cowgirl is to lie back on his chest, which will change the angle to better find your G-spot.   Sliding up and down his body this way is a novel sensation.  Along the same lines is leaning back in the crabwalk position so that your feet and hands are supporting your weight.   Move your hips up and down, using your leg strength to help you thrust.   Get him to support your buttocks to help with your balance.   If your hair is long, feeling it drift over his chest will be a definite turn on for him.
As always, I must point out that I am not a licensed sex therapist, and you attempt these positions at your own risk.  Be careful and have fun.