Try any or all! 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.
How to: Sit with knees bent and feet flat on the floor. Lean back, bringing palms under lower back for support as you gently lowering yourself to the ground on elbows. Arch back and drop head and shoulders back. Hold for 3 deep breaths. How to: Lie flat on back with knees bent, feet flat on floor, and both arms extended by sides, palms facing down. Gently open knees to sides and bring soles of feet together.