I drive my manhood deeper still into Katie, plowing her harder, hoping to bring her to orgasm so she can retaliate, putting everything I have into it. I pound her, pull hair, pulling at her skirt for what seems an eternity as her body writhes, her head still under water.
Finally I start to feel her body stiffen from behind, slightly at first but progressively harder as an orgasm overtakes her. Encouraged and aroused by this, I continue to work her, seeking to push her to another orgasm as she struggles against Cara. I pound her more and pound her more as if it was the end of the world until I feel her body begin to stiffen again. A few moments later she explodes in a second orgasm.