Missionary sex may have a rep for being old-fashioned or boring, but it remains a staple position couples fall back on, simply because it feels so good for both partners. Plus, if you're self-conscious about your body, the missionary position will make you feel more confident -- you're reclined with your partner's body covering yours, so all his focus will be on your sensuous eyes and sexy parted lips, versus those jiggly bits that'll be in full view when you're on top.

By changing your position slightly, you can alter the kind of stimulation you receive. Some va-va-vroom variants to try:

Your legs bent with knees up

This allows a deeper penetration, which means more pressure in the back part of your vagina. 

Keep your legs together

You'll hug his penis more tightly, giving you a better clitoral stimulation. 

Your legs over his shoulders

This gives a very deep penetration, giving more friction and stimulation to the G-spot.

Pillow under your hips

This raises your pelvis, increasing clitoral stimulation.