It was still mostly dark in the guest room when he woke up, and that coupled with the last clinging feelings of fatigue resulted in a brief moment of confused panic. No, he knew where he was. And he had to go to the bathroom. He stood, and in his boxers snuck through the hall to the bathroom. Cool, he had remembered where it was. He did his thing, washed his hands, and stepped back into the hallway ready to catch a few more winks before morning caught up with him. But something gave him pause.
He stood, frozen in the hallway with one hand still on the door knob, as he strained his ears to catch the sound he thought he had heard. There it was the unmistakable electric hum and the tiniest gasp he had ever heard. Now he was intrigued. Turning around, he crept towards the source of the sound. He was already getting hard, just from the thought that she might be doing what he thought she was, and as he neared the sound, his hear thrummed in his chest.
After a moment of hesitation he peeked and saw her sitting on the couch in her pajamas. He had always found her to be pretty, with long black hair and dark eyes that you could fall into, but until recently that's all she had ever been. His pretty, but entirely unavailable, friend. Recently, though she remained pretty and unavailable, there had been added to the mix a certain sexuality that seemed to inspire in both of them an unquenchable thirst. Or perhaps the thirst had been there always, but they had only just discovered a harmless and mostly innocent way to quench it. Whatever the case, he saw her now with the strap and neckline of her white tank-top stretched down, exposing her breast. They weren't large, but as the purple head of her plastic toy buzzed the pink nipple into stiffness, he envied the vibrator and the growing tent in the front of his underwear.
When she turned the toy off and stood up, he felt a sudden surge of panic. She was finished? Was she going to come this way? He had missed it? But then her fingers gripped the waistband of those baggy cotton pants and pulled them down. He watched in rapt fascination as she bent over to pull them off her feet. His teeth tugged his lower lip between them as that pale round ass was displayed to him, complete with the faintest sight of her sex peeking out between her thighs. Then she stood and reclined a little on the couch, with her legs open, but her back to him. With some shock he realized his own hand had crept into his shorts and curled around his stiff arousal. This was too far, her husband was gone... but his girlfriend was still asleep in the guest room. He should go back to bed, and use what he had seen here to get himself off in the shower later, or to imagine the next time he convinced his girlfriend to have sex with him.
That's what he should have done. But it isn't what he did. The airy moan that slipped from her mouth as he was making up his mind to leave destroyed his resolve, and though he couldn't see just what she was doing with that humming toy, he stayed and watched her do it. For a couple of minutes, he was content to stroke himself with her, his cock twitching in his hand every time he heard her make a sound. But lust had made him bold, and he had to see what he was missing.
With his erection in his hand, stroking lightly, he snuck over to the couch, and peered down at her. Her eyes were closed in ecstasy, and her hips lifted sporadically to grind the firm nub of her clit against the vibrating tip of her toy dick. The other hand trailed over her throat, and across her breast, then down the white plain of her stomach to her toy. She cooed as both hands worked at her, and before he could stop himself he echoed her with a small grunt of appreciation. Her eyes snapped open, and his face whirled to meet hers. There was no way for him to get out of this now... he was fucked.
