Indeed frustrating when she thinks she can just change position when you're on a roll.
You have the pin her down and pound away.
http://www.facialforum.net/attachmen...1&d=1534500618
http://www.facialforum.net/attachmen...2&d=1534500743
Works well becuase you can use the furniture as a brace to hold her in place while you get a full deep penetration on her

Then the more advanced but cobtrolling hold her arms and her in place.
http://www.facialforum.net/attachmen...3&d=1534500743
http://www.facialforum.net/attachmen...4&d=1534500743
Here you show her you're staying in control and she can't pull or push her self away till after your finished