Gift your partner the perfect sexy birthday present. Give now and receive later with the Kheper Games Sex Position Coupons. Each coupon includes a sex position based on the Karma Sutra and can be used to add a dash of unpredictability to your sex life. So pick up a set for your partner's birthday, have them redeem a coupon whenever they want, and let the games begin! Each coupon offers a unique Kama Sutra sexual position.