Her moans keep pushing your phallus outward. More and more strength until fully erect. Suddenly, a torrent of water splashes into your face. You drink as much as you can; some of the liquid drips from your cheeks. She moans happily, not like a dog, but like a mare... You pull out with your muzzle. She screams a quick yelp. A waterfall of liquid seeps out from her. Your mother is still in position and blushing to her hearts content. She awaits you still. You force a smile and position yourself doggy style on top. 