Starting large for a first time. This is a sub which Lady Valeska has never pegged before, so has a long asshole stretching dildo that is going to open things right up quickly.
With the sub on the sling, Lady Valeska quickly goes in back and forth, each time getting deeper and deeper.
The momentum of the sling means there are even times she doesn’t have to do much work, the sub swinging backwards and forwards onto the cock as more and more goes in each time.