I'm on a beautiful beach with my domestic slave serving as my seat cushion. There are tourists walking past and the tide is moving up fast. I've been training my sub at home in the tub so he is performing his facesitting duties well. The tide is very close and moving into us in not time. Not only will he be covered with my ass he will also be submerged in water. I lie back on him feeling his chastity cage. If he survives this challenge I will order a smaller device for him. Good slaves can handle a real challenge...can you?