This is a great exercise for training her core muscles. The cock in her bottomhole keeps her centred, while his fucking motions and her feet on his moving thighs forces her to tighten her core to maintain that stance and keep herself open.
This is a great exercise for training her core muscles. The cock in her bottomhole keeps her centred, while his fucking motions and her feet on his moving thighs forces her to tighten her core to maintain that stance and keep herself open.