When she bends down, and he comes from behind, there is something special which adds more pleasure to the action.
Steps to perform:
Step 1: She kneels and rests her palm on the surface and the other hand is down there to stimulate the action.
Step 2: He also puts his knees on the surface and holds her butts for support.
Step 3: Action starts now as he starts pushing himself into her with all the passion.