The Kama Sutra acknowledges and accepts that there are just as many shapes and sizes of vaginas as there are of penises, both in length and girth. Indeed, there are 3 types of penis: hare (small), bull (medium) and horse (large); and 3 types of vagina: deer (small), mare (medium), and elephant (large).

According to the ancient wisdom of the Kama Sutra, these three distinct sizes of men and women are meant to be matched up with a partner of equal size. This gives them the greatest chance of sexual fulfilment, enjoyment and satisfaction. It also states that disproportional couples can be very happy together, but may experience lesser sexual gratification.