"Fireman's Carnival" by Kathy B. (kathybxx@aol.com). The narrator has volunteered to work at a pie-throwing booth at one of those fund-raising carnivals for an animal shelter. After she flirts with some male customers for a while, it's her turn to stick her head through the curtain and serve as the target. Since her head is restrained by a drawstring, she can do little except grin and bear it when she is surprised by her husband's hands first fondling her ass and then fucking her from behind. In fact, her husband is more industrious and more eager to rise to the occasion than usual. If you think about this setup for a little while, you can probably guess the surprise ending. This is a good story.