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Sinner Sister-in-Law Part 1 - Fantasy

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By *ixed4Fun OP   Couple
over a year ago

Edinburgh

Grant and Anna had not long been married and living in their apartment when lockdown hit. They had been enjoying the early stages of their married life and had a very very healthy sex life.

They were both very open with each other and both knew exactly the kind of things that they were into and what kinks they each had. Grant loved to be edgy and always fantasised about being watched and loved the idea of watching Anna with another couple, girl and guy. Whilst Anna was much more of the submissive type. She often liked to play the ‘daddy’s girl’ role and loved Grant using her as a fuckdoll.

Just as lockdown was coming in, Anna’s older sister was living on her own and the lease on her flat was coming up. Anna and her sister Paula had moved to town from abroad so had no family close by except for each other. Paula was in her early 40s and had gone through a divorce last year. She was finding it difficult being on her own and the prospect of spending lockdown in isolation was quite a daunting thought for her and her family.

Grant and Anna decided to ask her to come and stay with them during the lockdown. She could let the lease of her apartment end and not have to worry about rushing to find a place and deal with a move in the strange circumstances of lockdown in the UK.

Anna and Grant were in their early 30s and kept themselves in reasonably good shape.

Grant is around 6ft 1” with a strong rugby type build. Broad chest and shoulders and very strong muscly legs. Blonde hair, blue eyes with pale skin. Anna has a darker skin tone, she’s about 5ft 4” with a size 10 body.

They would regularly see Paula socially. Paula and Grant would get along for some time before he would eventually start to grate on Paula. But deep down they both got on well and would be more than comfortable all staying together through lockdown.

Grant knew his wife was the more attractive of the 2 sisters. But Paula still had a very good figure for her age. She was around the same height slightly slimmer than Anna. She had nice long legs that she always liked to show off. Both Anna and Paula were blessed with just over a handful when it came to their breasts and Grant loved nothing more than watching Anna finish him off on hers.

Anna was always more shy with her figure and showing off her body while Paula had much more confidence. Something Grant had secretly enjoyed on several occasions. Paula would often wear short skirts and low cut tops out and about and would often be comfortable in her own home in a short pair of shorts and a loose t-shirt with no bra. The prospect Grant catching some sneaky glimpses of her in his apartment excited him quite a lot.

During the lockdown period that they were staying together, they enjoyed a few nights of drinks and staying up watching movies. It was cramped with just 2 bedrooms and 1 bathroom, but the living room kitchen were big enough. They tried to keep routines of cleaning and cooking and took it in turns. They also tried to do some form of exercise challenges by following routines they found online. The only issue was being crammed in together.

Anna and Grant were still having some fun together but Anna was always conscious about her sister overhearing what they were getting up to. Anna knew Grant liked the idea though. He would regularly grope Anna and give her sneaky inappropriate touches when Paula was about. Sometimes Paula would even catch him doing this and pass comment about ‘getting a room’.

As time went on, they all became much more comfortable around each other. Grant would often be more than happy to move around the apartment in just a towel. And as the weather was getting warmer and warmer, to his delight both Anna and Paula wore short and loose clothing every day. One day Grant was was sitting with Paula and Anna watching a movie when he realised that in his loose shorts his bulge and semi hard cock had become quite visible. Anna was sat beside him on the sofa with Paula lying on her front on the floor in front. He could just see her ass cheeks through under her shorts and he started to get harder.

He grabbed the blanket and put it over his lap to cover his shorts and grabbed Anna’s hand to guide it to his now fully erect cock. Anna was not impressed. She motioned towards her sister who was literally 5 feet away. But he kept hold of her hand over his hard dick until she touched it and started to stroke it slightly. She could feel it throbbing and could even feel some pre-cum leaking from the tip.

Paula moved to get up and Anna moved her hand quickly away. But by doing it she also moved the cover enough for Grants bulge to be on full display to Paula who was getting up to get some water. She looked at the 2 of them to ask if they wanted some, glanced at Grant, glanced down and glanced back up at him. She couldn’t have helped but notice the bulge in his loose shorts.

Grant felt nervous but also totally thrilled at what had just happened. Anna hadn’t realised that so much of Grant had been exposed to her sister. Paula left to go to the kitchen and Grant grabbed Anna’a hand again. This time Anna was having none of it. She didn’t want her sister to see anything. So when Paula got back, Grant made sure that she still had a slight view of his bulge. Sure enough when she came back in he noticed her eyes going straight to it. This time he caught her gaze and she quickly went back to her position on the floor.

A few minutes later Grant declared he was going to turn in for bed and stood up. His hardon had subsided but he still had a fairly decent looking semi which showed well through his shorts. Especially as he had no boxers on underneath.

He let his excitement build in the bedroom, going back through the scenario again and again in his mind. Imagining what Paula must have been thinking when she saw his hard cock. It was making him ready to explode with excitement but he wanted to save himself for Anna that night.

When he eventually heard Anna and Paula say their goodnights, he stripped off and lay on top of the bed naked with his raging hard on ready. When Anna came in she was nervous that her sister would see him. But he just instructed her to be a good girl and do as she was told. After all, she was his little fuckdoll and she had no choice.

Often they had both fantasised and lived out some free use scenarios where Grant would be able to do whatever he liked to his fuckdoll whenever he pleased. Mixed in with Anna being a good little daddy’s girl really turned them both on.

He got Anna on to the bed and lay her on her back with her head just at the very edge of the bed. He walked round to where her head was and told her to open her mouth. With her lying on her back with her head tilted back he placed his cock in her mouth and slowly started to edge it further and further in and out of her mouth and down her throat. He could hear her gag slightly which he knew she loved. “Are you my good girl tonight?” He said, and Anna returned with a very muffled “mmhmm” as her mouth was full of his cock.

As he was beginning to increase his rhythm and het faster, Anna moved her hands down to her open legs and began to play with herself through the baby pink pyjama shorts that she had on. She was fingering herself to the same rhythm as Grant was thrusting into her mouth. He could now hear how wet and sloppy her pussy was getting.

The position that they were both in meant that Grant was standing very close to the bedroom door that Anna had closed fully when she came into the bedroom. Grant could hear Paula moving from the living room into her bedroom which was right next door to theirs. He could hear her walking in the hall right past their door and then heard her going into the bathroom.

All he could think about is Paula seeing him fucking her sisters mouth while she got herself off with her fingers. He quickly moved and slightly opened the door enough that Anna wouldn’t notice and hopefully for him enough for Paula to be able to hear and possibly even catch a glimpse of what was going on.

He told Anna to take her shorts off and then moved round so the he was now kneeling beside her. She was lying on her back with her legs spread eagle open, while he kneeled beside her and began to finger her sloppy wet pussy. While he was fingering her, he was able to put his throbbing cock into her mouth which would muffle her moans.

Paula was finishing brushing her teeth and went for a pee before bed. Shen she lowered her pyjama shorts, she suddenly noticed how wet she was and that she had left quite a mess on the inside of her shorts. There was so much that she could even smell it. She suddenly realised how horny she was and how long it had been since shed had any kind of sexual release other than from her own limited sessions.

She couldn’t help but lean forward a little bit and take in another deep breath of her musky horny scent from her wet pyjama shorts. Fuck she was horny.

As she was tiptoeing back to her bedroom in the dark, she noticed her sisters bedroom door slightly ajar with some light coming through. As she walked past she was going to say goodnight, but she stopped when she heard the unmistakable sound of a very wet and sloppy pussy being fingered at a very hard rate and some muffled moans. She stopped suddenly. Her heart was beating she knew she shouldn’t be there listening to whatever her sister was doing, but she felt frozen to the spot.

Grant now had 3 fingers inside Anna and was working her pussy into a complete sloppy mess while she kept his hard cock in her mouth. Anna could barely do anything with the position she was in and the pleasure she was getting. She just kept his hard cock in her mouth to stop her from making any more noise. She was ready to gush all over his fingers and hand. Grant was holding back as much as he could, he was ready to blow and knew Anna was close to squirting.

His glance went from his wife’s swollen pussy and full mouth to the door where suddenly and to his utter joy, he saw a shadow move past the doorway. He knew instantly that Paula had just walked past. And to his amazement, he knew from the lack of movement, that Paula hadn’t just walked past and gone to her room, she was standing at the doorway listening to everything that was going on. “Do you like that you little slut?” He said. Knowing fine well this wasn’t just aimed at his wife who was sucking on his dick so hard to stop herself from screaming, but also to his filthy sister-in-law who was listening to everything that was going on and feeling herself getting wetter and wetter. It had been months since she had had any type of sexual interaction. She wanted what her little sister was getting. She wanted to be wanted again.

Grant couldn’t hold on any longer, the thought of Paula listening and getting off on what they were doing was too much “I’m going to cum baby, show me your tits…” Anna lifted her top and as she did, Grant started to thrust his arm up and down and his fingers in and out of her pussy harder and faster so the point that Anna released and squirted all over his arm and hand and her quivering legs. Just at that point Grant grunted in pleasure as he shot a massive load across Anna’s tits and allover the bed.

Paula couldn’t contain herself anymore, she couldn’t believe what she had just heard. Her pussy was now throbbing and needed to be filled. She didn’t know what to do. She was so confused, so turned on and felt so filthy but she had to do something. She quickly moved into her room, shut the door and desperately looked through her stuff for something. She hadn’t ever used a dildo or vibrator before, but all she could think of was what she had used in her younger days, her trusted old hair brush.

She slipped her shorts off, lay back, opened her legs and closed her eyes. All she could see was Grant’s bulge, and his muscular body. She could see him when they do their workouts in the living room, she imagined his hard cock and and what it would feel like. She was now easing the handle of her hair brush into her stacking pussy. She hadn’t done this since she was much younger living at home and experimenting with her body. She felt embarrassed and ashamed to be feeling like this about her brother-in-law, but she let the lust take over as she began to speed up the motion of the brush handle slipping in and out of her pussy while she rubbed her clitoris with the other hand. She was writhing in her bed, imagining all sorts of sordid thoughts as she could feel her orgasm build. She let go and as she arched her back and bit into the pillow to her side, she came so hard. Her pussy clenching and easing on the handle of her brush. The waves kept sweeping over her as her body jerked with each jolt of pleasure.

And once the haze eased off and she slowly pulled the brush from her soaking and dripping hole, she started to feel shame and embarrassment. How could she let herself think like that about her own sister and brother-in-law.

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By *ynaMike69Man
over a year ago

Blackpool

Great start

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By *eandher4and9Couple
over a year ago

leeds

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By *rgasm4u69Man
over a year ago

Warrington

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By *..NemoMan
over a year ago

Durham

Amazing start

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By *igerman23Man
over a year ago

hayes

Love it.

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By *imbob2145Man
over a year ago

stirling

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By *ohn_1983Man
over a year ago

South of Norwich

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By *orkiepud_69Couple
over a year ago

Scarborough

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By (user no longer on site)
over a year ago

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By *rgar27Man
over a year ago

Bognor Regis

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By *ikinghornMan
over a year ago

southsea

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By *ixed4Fun OP   Couple
over a year ago

Edinburgh

Part 2 - https://m.fabswingers.com/forum/stories/1531606#message_37234289

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