Lye down on any flat surface and put your legs up on your chest and your head up between your knees so you can see what's going on. (You can use a pillow.) Then do a backhand grip with one hand and let the other explore your curled up body..... Has great anus exposure (very horny feeling). Great if you like to explore...... The orgasm is great with your arms and legs intertwined!
If you slant your back up it's also great to shoot cum in your mouth!
It's great have a try!