Dan was feeling really sexually frustrated. His wife Lea had once again passed on sex with an excuse about being tired. After 7 years of marriage and the gradual erosion of sex, they'd had to resort to planning sex in advance. When it did happen, it was a rote affair. The same positions, preceded by the same types of foreplay, ending with her soft moans as he'd cum inside her. They'd roll off each other, kiss, take turns cleaning up in the bathroom, exchange "love you's" before drifting off to sleep.
As repetitive as sex had become, Dan wasn't getting it. Tonight had been one of the scheduled nights, and he'd been anticipating some action. As he laid in bed wondering what to do about his throbbing erection, Lea started softly snoring next to him.
"Great. At least she's ok with how this turned out," he thought.
Dan gave a soft exasperated sigh, threw off his bed covers and decided on getting a cold glass of water to suppress the pent up need stirring in his loins.
It was late, and it was his house, and so it was an altogether unremarkable scene as he padded softly in the dark towards his kitchen - topless, his hardon stubbornly tenting his boxers.
What was unexpected however, was walking right into Alice who was turning the corner holding her own glass of cold water. They both exclaimed - though apparently not loud enough to wake Lea, whose snoring continued to rumble softly, unabated. Dan felt the ice cold water splash on his legs and feet. Mumbling an apology, he reached out and teased the dimmer on to assess the situation.
As the lights came on, he froze. In the soft glow of the hallway lights stood Alice, who was turning beet red as she was both trying to apologize while awkwardly attempting (and failing) to hide the fact that she was just in her bra and panties.
Alicia was Lea's younger sister, and she had begun crashing with them for the past week while she looked for a job in San Francisco. Without any conscious thought whatsoever, Dan's eyes went straight to Alice's naked collarbone and the exposed top of her chest. Some of the water had splashed onto her, and there was a droplet that his eyes apparently could not ignore.