The best sex position is not necessarily the one in which you have your partner's legs in front of you, but where you have your legs in front of her. If she wants to move on to an onsus position, then it's your turn to be the one who makes her move. (I'm not kidding.) If she wants to keep things simple, then just be as far behind her as possible. If she wants to get some distance, then pull out her legs and sit on top of her. This will make it easy for her to get back into an onsus position without her partner ever having to move.
Another common mistake couples make is not moving their hands or feet away from the wall. This is the perfect position for a woman to be with a man if she wants to be completely dominated, even if it's a no-strings-attached sort of domination. While there are many positions where a woman is able to move about on her own, if you're not doing something to get her out of the way, it will be much harder to get her back
Another common mistake couples make is not moving their hands or feet away from the wall. This is the perfect position for a woman to be with a man if she wants to be completely dominated, even if it's a no-strings-attached sort of domination. While there are many positions where a woman is able to move about on her own, if you're not doing something to get her out of the way, it will be much harder to get her back