LOW SIDE-TO-SIDE LUNGE
Lunges boost flexibility, so he'll be able to find your G-spot in almost any position.
Do the move: Stand with your feet spread wide, about twice shoulder-width apart, your feet facing straight ahead. Bend slightly at the waist, and clasp your hands in front of your chest. Shift your weight over to your right leg as you push your hips backward and lower your body by dropping your hips and bending your right knee. Your lower right leg should remain nearly perpendicular to the floor. Your left foot should remain flat on the floor (A). Without pausing, reverse the movement and raise yourself back to a standing position. Next, repeat with the left side (B). Do 10 to 20 reps on each side, alternating back and forth.