See https://www.literotica.com/s/kevins-story-1 and https://www.literotica.com/s/grandmas-story for the complete story.
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Kevin was awake when his Grandmother had gotten out of bed. He had been for sometime, while he played the nights events over in his head. At first he was worried that he had taken advantage of her, forced her into something she didn't want to do, and the way she had gotten out of bed it seemed she felt the same way. But after playing it over again in his head he knew she was a willing participant. Now the only guilt left was cheating on his wife. In all the years they had been married he never had before, and he was sure she had never slept with another man during that time. So how do you deal with that guilt. He remember seeing one of those self help shows where the psychologist said that confessing infidelity was done for the benefit of the adulterer not the spouse. So unless his Grandmother spilled the beans he wasn't, besides he had at least a week before he would see his wife again and he could have it all worked out in his head by then. For now he had to work it out with his Grandmother. He would hate to have ruined a relationship that had lasted this long.
He got up and grabbed his robe tying it around him as he went down the stairs. He tried the kitchen first but it was dark so he went toward her bedroom. He found the door cracked but the room dark. There was a sliver of light shining through from the slightly opened bathroom door. Kevin started to duck out and wait for his Grandmother but he thought he heard crying coming from her direction. Creeping forward he moved to the opening in the door. As he got close enough he could see his grandmother reclined in the large claw foot tub. She was facing away from him, at first he could only see the top of her head and her now dyed but attractive red hair and shoulders, as he moved closer he could see those large tits that he had pawed a short time ago and the plump strawberry nipples were crinkled up again. His Grandmother was pinching one again, she had her arms crossed in front of her chest, one are holding up her breasts while the hand was stroking and pinching the nipple. Her other arm framed the other side while her hand was busy between her legs. Kevin strained to see more but couldn't clearly because of the water. He could tell she was busy fingering herself and the what he thought was crying earlier turned out to be gasps of pleasure. Without realizing it Kevin had reached down and began stroking his cock which has risen on it's own and had poked it self outside of his robe. Without thinking he watched his Grandmother tease herself, when he finally realized what he was doing he shook off any guilt rationalizing she watched him so he could watch her. When she placed her legs on each side of the tub and began thrusting her hips up causing tidal waves in the water Kevin stroked harder.
Frustrated Grandma could not reach a climax like she was, even pumping her hips didn't help, the fear of flooding the bathroom didn't help either. She stopped her fingering and sat up dropping her tits and sighing. When she did Kevin stopped as well and backed up. When she turned over and knelt in the tub placing her chest against the back of the tub and her ass in the air Kevin stepped forward again. This time all he could see was her face and now closed eyes along with her ass humping in the air as she got herself off. Her tits were still being mauled by her free hand but they were hidden by the tub as well as the hand buried in her cunt.
Still Kevin was entranced by the alabaster white ass bouncing up and down in the tub. It jiggled a bit more than his wife's but like her there was no cottage cheese. Kevin stroked with renewed fervor remembering how he had plowed her from behind a few hours before.
The wet smacking sounds her hand made as she stabbed her fingers into her cunny turned her on even more. She had her eyes closed for most of the fantasy now reliving her grandson pounding her from behind. As her breathing increased and her pleasure built she rested her head on the lip of her the tub. Her mouth open slightly her tongue barely peeking out as she panted in pleasure and building desire. In her growing fog she opened her eyes slightly and saw her grandson standing in her bedroom through the open bathroom door. The light bathing him in enough of a glow so she could see his fist sliding up and down his hard cock and his thighs flexing in the pleasure.
Her first mutter of "Kevin?" was more of a question but as the thought that she was being watch like she had watched him and he was stroking that lovely cock again as she was about to cum pushed her over the edge.
The question turned to begging as she called out "Kevin, Kevin, Kevin."
Her ass was now jack-hammering down onto her fingers until she could stand it no more, she locked her thighs around her hand before collapsing into the tub splashing cooling water onto the floor. When he first heard his name Kevin thought she had seen him and he had started to back away from the door again in panic but when he realized she was calling his name as she orgasmed he stepped forward following with his on climax shooting ropes of cum onto the bathroom door and floor before dropping to his knees.
Kevin was the first to recover and hurriedly used his robe to clean up his mess on the floor before extricating himself back to his room. Grandma came to her senses and looked out through the door hoping to see her grandson there but he was gone. She sighed believing it was all a figment of her imagination. Standing she grabbed a towel from the rack and wrapped herself in it before walking back into her bedroom. She shut her door completely before turning on the lights. She heard the water turn on upstairs and knew Kevin was in the shower. Part of her wanted to go upstairs and get in the shower with him letting things go from there. As she dropped the towel in front of her mirror she let that thought go. There was no way her grandson or any man would get turned on at the sight of her now.
Her once proud D cup breasts hung lower and the little roll around her belly was still there from having children so long ago. The tiger stripes of stretch marks covered her stomach and upper thighs. She turned and looked at her ass, now drooping a bit despite exercise, but no bumps or fat pockets that many women her age carried around. Even so she knew the only reason her grandson had taken her last night that he was frustrated from the repeated lack of being able to see his wife and the stimulation from being in the middle of masturbating to his wife's sex videos. She knew there was no way he would want a repeat this morning and no way she saw him standing in the shadows masturbating as she did the same. It was just a wishful dream on her part. Sighing she crawled up on the bed covering her nude body with the duvet before getting lost in her own self doubt.
Kevin had finished showering and had gotten his uniform on. He always kept a few pressed and prepped ahead of time. In his line of work nothing was worse than a bad looking uniform. He had hoped to talk to his Grandmother before he left but as he went downstairs he saw her door was closed. He waited for her to come out as long as he could before he had to leave. He hoped she wasn't having second thoughts after her orgasms this morning.
Hearing his truck start in the driveway did little to make her feel any better. When she heard it back away and into the street she sighed heavily and decided she needed to get dressed and quit feeling sorry for herself. She should be glad that in her lifetime she had been able to have had sex like that at least once in her life with a man. It was pleasant before with her husband but not as earth shaking as the forbidden sex with her grandson had been. Walking by her bathroom door she went to push it closed when her hand it something wet and gooey on the door by the knob. Rubbing it between her fingers she brought it to her nose and smelled. At first her mind didn't comprehend the slight chlorine smell until she touched it to her tongue. Then the flood of memories of taking her grandsons cock in her mouth last night flooded over her. It was the same taste but how could...
"OH MY GOD" her mind screamed, "He was here, he did watch me, and he climaxed watching me."
She searched the door for more of the streak taking what was left on her fingers and wiping it on her nipples making her gasp with pleasure. She found another congealing glob and taking it she used it to began rubbing her clitoris, this time groaning. She didn't know what had come over her. She had never masturbated this many times in one day in her life and never had she used a man's ejaculate to masturbate with. Dropping to her knees she leaned her head against the now closed door to keep her balance while she worked herself up to another frenzy. Leaning into the door she closed her eyes and pressed her cheek against it feeling another slimy glob brush her nose. Leaning her head back she snaked out her tongue and licked the remaining liquid from the door as her fingers pinched her clit to another shuddering climax.
Now dressed and going about her daily chores she went upstairs to Kevin's room. He normally did his own laundry but she wanted the evidence of last night gone. Despite her repeated fingering of herself and fantasies of Kevin fucking her over and over she knew it wouldn't, couldn't happen again. It was bad enough that he was her grandson, that in itself was immoral and illegal But he was married and she like Courtney and didn't want to cause any problems between them. So she would pretend none of this happened, she would clean the sceen of the crime and wash away the evidence on the sheets.
Looking now at the disheveled bed she knew Kevin was having an off day. He always made the his bed when he got up, something he got from being in the Army. She would set him straight tonight, letting him know that it never happened and that things were the same. Pulling the blanket and sheet aside she saw the stained sheets. Instead of off white color there were a pink from being stained with her blood. She felt a twinge in her cunny as she remembered Kevin working his thick member into her. He was thicker than any man she had before, that and her lowering estrogen levels, combined with her lack of sexual activity over the last 5 years made the minute tears in her vagina that mimicked virginal blood.
She stripped the sheets and mattress pad then headed for the laundry on the first floor. As she approached the open door she saw where she was kneeling last night when he walked up to her shooting his sperm onto her masturbating form and then sticking his cock in her mouth, another first for her. Noticing little white splatter drops on the hard wood floor she knelt down trying to wipe them up with the dirty sheet but they were dried. Leaning down she opened her lips to allow a line of spittle to moisten the stains. As it did she shook of the desire to lick it from the floor. She couldn't imagine what came over her, she had never been such a nasty slut in her life. Wiping the spit and drops up she hurried downstairs and her made herself a cup of tea to calm her raging hormones and nerves.
The recruiting event went really well for Kevin. He had gotten quite a few contacts for follow up and even a few promises to come in to the recruiting station to take the test. Although he knew if 20% of those ever made it in it would be a miracle. But getting the contact information was a little victory, not only did he get high school seniors but he got their parents info as well. Kevin was feeling pretty good when he pulled onto his Grandmothers street. That is until he pulled into the driveway and saw his wife's blue sedan in the driveway.
The knock on the kitchen door startled her already frayed nerves. When she opened it and saw Courtney standing there is didn't help matters either. Courtney was her bubbly self as she bustled in the door dropping her bag and taking her coat off before hugging her tightly. She didn't know if it was her over sexed state or the the thinness of Courtney's bra but for the first time she felt the younger woman's breasts roll against hers during the hug. That sent a twinge from her nipples to her clit making her blush.
Courtney blurted out "Grandma, I hope you don't mind the surprise but I missed Kevin so much that I had to come see him, I left the kids with the neighbors and left early this morning to get here."
What could she say? Get out, that's my cock now? Not very likely. She welcomed her like the gracious hostess she was. They were both sitting at the kitchen table drinking tea and eating finger sandwiches when the white faced Kevin came in the door.
Kevin walked in not knowing what to expect, would his Grandmother tell Courtney everything or would his wife just know. When he walked in finding his Grandmother and Courtney laughing over tea he was even more confused.
