How this position works is the woman is supposed to be on her back lying down. You need to follow along with this one, because it defies good sense and logic.
It's like being Jack at the top of the beanstalk and the giant has been replaced with a hot girl, but she still wants to stomp you to death for some reason and won't stop slamming you with her foot over and over until you beg to move on to the next one. If you're not a dancer type who is able to Van Damme your crotch at a moment's notice, even the most sincere effort to make this position work will result not in sexual bliss but in Felix getting kicked square in the breadbasket.