It wouldn't have happened if they weren't drunk. James knew that, he also figured it wouldn't have happened if he and his wife, Denise were at home. He figured it was all just a set of circumstances that combined to lead to the event. A sexual perfect storm he called it.
James and Denise had been visiting relatives in another city and they were staying at James' mother's house while she was away on a cruise. The house was nothing spectacular, a small two bedroom, two bath house with no real fancy features except for the shower in the master bathroom.
The shower was all tile, recessed two steps down from the bathroom floor level, with one low step along the back of the shower and a tall step up to the shower opening. There was no door on the shower, it basically wasn't needed with the deep recession. Anyway, it was different, large enough for two, or even three or four, though they weren't drunk enough to consider a foursome.
After eating out with James's father and his wife, James and Denise headed back to the house where James opened a bottle of his mother's wine. After polishing off the bottle they both were feeling pretty good. Not wanting to leave any tell tale signs in the sheets for James' mother to find, they both decided to head to the shower to fool around a bit.
James had stayed at his mother's house many times before and had used the shower on numerous occasions, so he knew the possibilities it held. That high step out of the shower was perfect for a woman to rest her arms on as she bent over and took a man from behind. That is exactly what he planned for his wife, to bend her over and fuck her from behind.
With the plan in mind, James made sure he brought along some lube. It was a necessity these past few years for Denise since she had entered menopause. With the lube in hand, James led Denise into the shower and they both got into the warm water and soaped each up. James concentrated his scrubbing of his wife's large breasts, swirling his soapy finger over her nipple and then cupping his hands over both breasts and squeezing.
Denise scrubbed James cock and balls, working his shaft up and down while squeezing his balls to just the point where they ached slightly then releasing. James finally had to move her hands away so he wouldn't come too soon.
When both of them were pretty worked up James said, "Quick, let's rinse off, I've got an idea."
Denise made a face, wary of James' ideas, but she rinsed off and then asked, "Okay, what now?"
"Look, bend over here and rest your arms on the floor there," he said, positioning her as he had fantasized about for years.
She bent over and said, "Okay?"