There are no characters under the age of 18-years-old in this story.
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Hoping for a good night's sleep, Mom invites son to sleep with her. She allows him to touch and feel her nearly, naked body while he holds her, comforts her, cuddles her, and spoons her.
Kimberly readied herself for bed in the master bedroom while Michael used the guest bathroom. Before going to his mother's room, in the way that his father used to do with his mother, he stroked himself to a semi-erection while thinking of spooning her while holding his mother's naked breast. Before going to her room, in the way his mother used to do with his father, he stroked himself to an even harder erection while thinking of her holding his naked cock and spooning him.
'Quite the understatement, this should be interesting,' he thought.
Obviously feeling sexy as much as she was feeling horny, perhaps from the wine consumption, or perhaps, because her son volunteered to sleep with her, Kimberly put on her sheerest, shortest, sexiest nightgown. Obviously, as much as this was her son's opportunity to have sex with her, this was her opportunity to have sex with her son. No doubt shocking him, incestuously teasing him, and sexually exciting him, she had never shown as much of her sexy and shapely body as she was about to do tonight.
It was a nightgown she never got to wear for her husband. Perhaps, she chose to wear this nightgown because, giving her son easy access to her nude body, it parted in front as if it was a sarong or a full body kilt without the big pin in front keeping it closed. With it only having one button at the neck holding it somewhat closed, it looked like a sheer poncho or an oversized, wraparound, transparent cape with two big holes for her arms and one for her neck.
Totally see-through, it looked more like something she'd wear over her nightgown than just wearing it alone. Having never worn it to bed before and by choosing it to wear now, with her ex-husband sexually attracted to woman half his age, she knew that her son was sexually attracted to her. Obviously, now that her husband was long gone, she felt and looked sexy wearing it. No doubt, eager to wear it for her son instead of for his father, perhaps it had been a long time since she felt sexy enough to wear it. Perhaps, her wearing such a revealing nightgown now was her signal to him that she wanted sex instead of sleep.
As if he was picking up his date for the Prom or giving his new bride privacy on their Honeymoon night, Michael patiently waited before lightly knocking on her bedroom door. Then, when she didn't answer, he respectfully and impatiently waited again, this time for her to answer his knock. When she didn't respond, nervous now, he lightly knocked again. Perhaps, she was in the master bathroom and was unable to hear him. When she didn't respond again, wondering if she had changed her mind and had already gone to bed, he knocked a third time.
'Maybe she's passed out drunk on her bed and I'll have to undress her,' he thought while imagining removing her low-cut blouse, her short skirt, her bra, and her panties. 'I'd love to strip my mother naked and put her to bed while touching and feeling her everywhere. Then, with her naked, I'd love to sleep with her while holding her. Even though I'd never violate her in such a violent way without her consent, if she awakened and agreed to have sex with me, I'd love to have sex with my drunken mother.'
He knocked again.
"Mom?" Not wanting to barge in on her in the way that she barged in on him earlier, he waited again for her to answer. The last thing he wanted to do was to ruin his chance of sleeping with her by embarrassing her if she wasn't decent. "Mom? Are you decent?" When she didn't answer, he asked the question he wanted to ask in the first place. "May I come in?"
With his mind reeling with sexual excitement of sleeping in the same bed with his mother, he hoped she wasn't decent. In the way that she opened his bedroom door when he was naked, masturbating, and cumming before, he hoped that she was naked, masturbating, and cumming now. Knowing better than that, he'd never catch his mother masturbating in the way that she caught him masturbating. He'd never catch her naked in the way she caught him naked.
In all their years together, granted that he was away at college for four years and home only for the holidays and summer, he had never even seen her in her bra and panties, never mind seeing topless, or naked. He'd love to see his mother in her bra and panties, topless, and/or naked. Now that he thought more about it, he wouldn't mind undressing her, especially if she was too drunk to undress herself. He imagined touching and feeling his mother in all the places when she was drunk that he wished he could touch and feel his mother and didn't dare touch and feel his mother when she was sober.
A sexy sight to behold, he hoped she slept in the nude or topless with just panties. A sexy sight to behold, he hoped she'd wear that sexy, black nightgown that she always wore for his father on special occasions. A sexy sight to behold, he hoped she'd wear the sexy Victoria's Secret nightgown that he bought her for Valentine's Day. A sexy sight to behold, his mother could wear her clothes to bed or even a potato sack to bed and she'd still look sexy.
Allowing his sexual fantasies to inspire his horniness and take control of his libido, he knew she'd never wear such sexy nightgowns to bed with him sleeping with her. Yet, hoping beyond hope, if nothing more than his sexual fantasy to masturbate over later, he hoped that she'd open her bedroom door naked and insist that he'd be naked too. She wouldn't have to ask him twice to remove his tee shirt and his pajama bottoms. Only, in the way she'd greet him with her big, naked breasts, her blonde, trimmed pussy, and her round firm ass, he'd greet her with his already throbbing erection.