No idea why it's called the ape sex position! You need to be more of a gymnast for this one.
The man lies on his back and pulls his knees up to his chest. She sits down backwards and slides his penis inside while propping herself up on his feet.
The more she shifts her weight on the legs, the easier it becomes for her partner... although, let's face it, it's never going to be a easy!
Through the deep penetration, 'the ape' provides for especially sensual moments. However the woman must have adequate muscle power and balance for this position. She should reach down and grab her partners wrists to make movement simpler.