He makes a satisfied sound and lets her help herself. The bubbles are nice on his erection, her hand is good and tight, but he won't get distracted from the tight clench around his fingers. He thrusts back in hard, starting a rhythm that's almost rough - except it's softened by the almost delicate touch over her clit, the lightest tease that hits right as he pressures her g-spot inside.

It's a bit hit-and-miss because of the water, but he's dedicated, watching her face to gage the timing that works best for her.