There are 17 ways to express 17 as the sum of one or more primes; 17 is the only integer that is equal to the number of prime partitions of itself. The simple perfect squared square shown below was discovered by A. This position is also great for analingus, if you so desire. Woman On Table Sex Carleena Ranger For truly intense thrusting and sex that involves a lot of power, having your feet firmly planted on the ground is a great way to go. This is arguably the quickest way for a girl to get an orgasm, although quite a bit more difficult for you in that position. Have her get down on all fours, either propping herself up on her knees and hands or knees and elbows. The multiplicative inverse of 17 gives a decimal expansion with a digit repeating decimal: Let me know if it works for you too. It is the only prime number which is the sum of 4 consecutive primes: Use your free hands to massage her breasts, and if you want to add an element of dominance despite your position on the bottom, you can place your fingers gently around her neck. As for her legs, there are a few options; you can have her wrap them around you, you could have them hanging down or up against your shoulders, you could even have her lie on her side as well for a differing angle of penetration. The Heinz people are still quite attached to the number We also hate to mention it, but you should also bear in mind that if you bounce her too vigorously, there is a chance you'll slip out, and she'll bounce back down on your manhood, and you'll deal with something called "penile fracture. Girl On Top Carleena Ranger Probably the second position you'll have learned after "missionary," there's more than a few reasons why girl on top is arguably the favorite sex position in the world. I don't know if this would work with everybody, but since he is a good lover who lasts enough to please his female partner, i have decided to give you some information about the above numbers, if you would like to test his theory. You get to lie back and get a simply wonderful view of your girl moving up and down; she gets excellent clitoral stimulation and a lot of control of depth and penetration. However if you sum them to the number two, like the number of the performers of the above positions, they become 71, 59 and 23 which are all prime numbers.