Person A and B find each other on Tinder, meet up, and have sex. Like a month later Person A's sibling decides to introduce their new significant other, Person B, to their family.

John wasn't particularly into dating, not since his wife, River had died on a trip to Italy when she was called out for work. His son, Matt, had set up a 'Tinder' profile for him, whatever the hell that was. Matt showed him how to use it and eventually John got the hang of it and wiped yes to the women he did like. He wasn't looking for a relationship, but he couldn't deny it and say he wasn't looking for sex. John suddenly sat up on his couch, beer in hand as he came across a profile with a short brunette smiling in her photo, he liked her immediately and spent the entire night wondering if she'd like him back and they'd match, it was a long shot, but she was worth the risk.

Clara sat on her couch, her feet propped underneath her as her cat nuzzled along her chest and face. It was a late Friday afternoon, she should be out dancing, or fucking her 'boyfriend' but it seemed he wasn't interested as of late. She was swirling her glass of wine as Blackbird hummed in the background when he phone pinged all of a sudden. The noise alone was enough to startle her, spilling the wine on her shirt and cat.

'Fuck!' she exclaimed, quickly taking off her shirt.

She shrugged at her cat who hissed at her, 'Oi, shush, you! I didn't do it on purpose,'

Oh, great, now she was talking to her cat.

Clara almost laughed when she noticed a notification from her Tinder app, 'Oh, I'm going to kill Amy,' she said out loud, opening up the application.

There were many men, a lot with ungodly man buns, other than that simply looked too douche. She figured she shouldn't be on it at all, but as long as she didn't meet anyone it wasn't technically cheating, was it? She almost swiped left on a rather handsome older man. He seemed different than the others, his gaze seemed soft, yet intense. His hair seemed to be made out of cloud, and his legs seemed to go on forever. She noticed his bio, it was short, yet telling. She smiled and decided to swipe right. What could go wrong? It's not like he'll actually be online right now.

John jumped when he heard his phone ping and thought about ignoring it, until he saw the Tinder app alerting him he had a match. He arched his eyebrow and set down his beer, scrolling through his phone to realise it was Clara. Shit. She had liked him too? Now what was he supposed to do? Matt hadn't told him what to do past swiping left and right. John sighed, his thumb fidgeting until he sent her a message.

'Hey, I'm just going to go straight into it, I'm not looking for a relationship. I lost my wife six years ago, I'm just looking for sex. Are you up for it?'

Clara had quickly changed into the only clean thing she had left, a red lacy negligee. She heard her phone ping again and she immediately looked at it. Her jaw almost dropped as she saw the message. She thought of saying no, but something in his gaze seemed familiar.

'I won't lie, your offer is intriguing, but I do have a boyfriend although he hasn't touched me in over a month. So if that doesn't bother you, I'll send you my address now.'

She'd drank almost half a bottle of wine, and it was quickly warming her insides as she waited for his reply.

John got her reply and nodded his head, shrugging as he thought it over. It was her problem, not his. He smirked and got changed quickly, slicking his grey curls back so they weren't as wild. He drove to her flat and knocked on the door, wondering if he should kiss her straight away or have a few drinks with her. He was as cool as a cucumber, and he looked it with his dark shades on.

Clara heard the door and quickly gave herself a once over before opening the door. She had to hold back her laughter, 'Well, don't you look quite overdressed,' she said, still standing still in her see through negligee.

John smirked and took off his shades, his eyes wandering to what she was wearing, 'Wow…' he whispered, swallowing hard.

'You… are beautiful. How could that boyfriend of yours resist?'

Clara simply shrugged as she waved him inside. She laughed, waving him over to the couch. She instantly straddled his legs, moaning as his hands instantly went to cup her ass, 'Can we not talk about my boyfriend, seeing as it's the first time I'll be cheating on him?' she whispered into his ear, she began to nibble down his neck, and along his jawline.

John nodded and shrugged his shoulders, 'Fair enough,' he mumbled and dropped his hands to tug down her knickers, chucking them elsewhere. He unclipped her bra quicker than any other man could and lent forward to kiss her, his fingers in her hair as he felt her grind against his tight jeans.

Clara melted under his touch, her heart racing as the wine continued to loosen her up. Her tongue duelled with him for the longest time, her hips grinding down against his hardening cock. It was the first time she'd been with someone so much older than her, and yet he seemed so knowledgeable, knew exactly how to play her to make her moan.

'What do you need, baby? Tell me…' she growled, drawing out his bottom lip with her teeth.

He winced when she dragged his bottom lip out with her teeth and knew in that moment, she was the type of woman looking for rough sex. John smirked and lifted her up, pulling Clara's legs tight around his waist as he carried her to her bedroom.

'I think it's what you need, darling. Your boyfriend clearly doesn't touch you like he should,'

Clara gasped as he lifted her, her nipple hardening, and pressing against his clothes, 'You're right… he doesn't know how to fuck,' she growled, feeling his cock pressing hard against her.

'I need to be spanked, choked… Think you can handle that?' she purred, pushing off his shirt as quickly as she could, her hands working on his belt buckle.

John smirked and felt himself drop onto the mattress, Clara already grinding on top of him. Her questions made his breath hitch and his cock unbelievably hard as he nodded his head, 'Of course I can,' he murmured, giving her ass a hard slap as he managed to take off the rest of her clothes.

Clara smirked, writhing underneath him, a soft moan escaping her lips as he slapped her ass, 'Fuck, daddy…' she mused, pulling on his grey curls.

She was sure she'd melt if he kept exploring her with those sensual hands. Clara's gaze turned wicked as she pushed him onto his back, her eyes widening as she saw his huge cock, 'Definitely nothing like my boyfriend,' she whispered, kissing down his body.

He winced each time her teeth nipped at him and as he looked down at her, he knew then, this could be only a one time thing. Because if they did it again, he'd be afraid that they wouldn't stop. John took a deep breath and pulled her back up, kicking off his jeans and boxers as he lifted Clara up and then slowly sank her down onto his cock, and judging by her face, he was bigger than her boyfriend.

Clara arched her back, her jaw dropping as he stretched her out, 'You weren't lying, getting straight to it,' she laughed, bending down to nip at his neck, leaving a large love bite.

John shrugged, 'Only in it for the sex,' he muttered, and once she had given him a love bite, he yanked on her hair until her head was hanging back, her neck exposed as he covered her neck in love bites.

'Explain that to your boyfriend,' he whispered and before she could even react, he started to fuck up into her, his fingers digging into her hips.

Clara growled, 'Don't worry, he won't be back until Friday,' she moaned, tugging on his hair, 'If you're just in it for the sex… Then hold on,' she told him, pulling his arm over his head, tying his wrists to the headboard as she began to ride him.

She had to admit he was good, more than good if her moans filling the room were any indication.

John smirked, arching his eyebrow as he watched Clara tie his wrists to her headboard. He nodded his head, impressed by her completely as he moved his hips in time with hers, wanting nothing more than to reach his hand up and cup her breasts, but he couldn't move and it was almost torture from how beautiful she looked riding him.

'So, the daddy thing… You have daddy issues?'

Clara's breasts bounced as she rode him, her back arching into him as she closed her eyes and let out a high pitched moan, 'Fuck!' she whimpered, her nails dragging down his chest.

'You're old enough to be called daddy… Unless you prefer something else?'

John tugged on the restraints, almost glaring up at her in annoyance that he couldn't touch her, 'Master will do,' he joked with a wink, pushing his hips up a little harder to make her bounce on top of him.

Clara pushed back on his cock and arched her eyebrow, 'Master, really?' she almost laughed, but figured for one night, it would do.

'Tell me Master, shouldn't you be tying me up, and fucking me?' she growled against his ear, undoing his restraints.

She purposely avoided kissing him, as she remembered it was just sex.

John smirked and nodded, rubbing at his wrists, 'I suppose I should be,' he murmured, pushing her away from him until he was on her in seconds, pulling her right leg over his shoulder as he suddenly slammed inside of her, his cock hitting her g spot as his hand dropped to choke her.

Clara growled, biting onto his shoulders, her nails digging into his back, 'Fuck, Master, feels so good,' she moaned, her heart racing.

'Give it to me hard,' she purred, withering underneath him, her hips meeting his each time.

He growled under his breath and slammed in and out of her, wincing when she scratched up his shoulders and back. After a few minutes, he tightened his grip around her throat, the only sound out of her mouth was a few strangled moans and pants, barely able to talk.

Clara instantly felt her legs convulse around him as she came hard, his name on her lips as she took a moment to regain her breathing, 'Cum for me, John…' she moaned, once he had let go of her throat and allowed her to breathe.

It took John a few more minutes and a number of thrusts before he came inside of her, her name a growl on his lips as he slipped out of her. But he wasn't done yet. John disappeared in between her legs, pushing her thighs apart as his tongue lapped at her – he knew full well she wasn't going to last because of how sensitive she was.

Clara let out a feral moan as her back arched off of the bed, her hands pulling on his soft, sweaty curls, 'Fuck… C – Can't,' she didn't get to finish her sentence as she spilled over his mouth, grinding against his face.

Her body was a light crimson colour after she had orgasmed. How was it possible that a stranger knew how to please her more, than her boyfriend of six months?

John didn't give her any time to recover from two orgasms in a row as he lifted her up by her hips and pulled her further down the mattress, his hand on her throat as his free hand easily slipped two fingers inside of her, his thumb rubbing her clit.

'Good girl, Clara. Do you want to cum again, hm? Can your boyfriend do things like this to you?' he muttered, only choking her harder when she tried to speak.

She shook her head in response, Matt never touched her like this, 'Please…' she found herself begging, and thrusting her hips against his hand.

Clara moaned as he sped up his fingers, but only seemed to slow them down.

John smirked and bent to kiss along her jawline, 'What was that? Did you say please? Say it again, baby girl…' he almost growled, his heart racing as he pressed his thumb harder against her clit, his fingers stopping altogether. He wanted to leave her begging for more once he'd finished with her.

Clara closed her eyes. His cologne filling her nostrils. She battled her eyes open, catching his own blue ones. They seemed darker and filled with lust, 'P – please, daddy…' she murmured, her voice shaky.

'I – I need you, 'she whimpered, her voice sincere as she cupped his face.

There was something – familiar – about the way she cupped his face, like it was supposed to happen, like her hands were made to fit his face. John growled under his breath and bent to kiss up her throat, no kissing – this was just fucking. After a few moments, he picked up the pace of his fingers, moving them at a quick pace until he felt her cum hard around his fingers.

Clara's heart stopped for an instant as he kissed along her throat, and for a moment she wondered how they would feel against her own lips. She came with his name prominently on her lips, it felt so natural to say his name, so right and for a moment, she was afraid. Afraid she wouldn't want this to end, but she knew better. She knew it was a one time thing.

'John…' she said breathlessly, flipping them and soon she settled between his legs.

She instantly began bobbing between them, kicking and nibbling along his shaft, 'So big…' Clara hummed, adding vibrations around his cock.

John growled, his hand grabbing at her hair as he tugged on it hard, 'Shit, Clara…' he paused for a moment and tried not to make his voice sound so desperate.

After around ten minutes of her just sucking him off, he flipped her onto her front and they spent the whole night just fucking and not once did they kiss, but John couldn't deny the raw attraction between them that was more than just sexual. It was three in the morning when Clara finally passed out from the sheer pleasure he was giving her and instead of sleeping in her bed, John stood up and pulled on his clothes, he knew for certain she was on the pill and they had used condoms all night, so there was no problem with any pregnancy. John went to leave, but he bent to press a gentle kiss onto her forehead.

He wouldn't leave her a note, but a kiss, she deserved. John left immediately and went straight home to sleep, getting ready for the next morning where he travelled into work. Clara awoke to find the bed empty, a part of her was disappointed, yet she knew it was pre-arranged. She quickly showered and changed before heading out. A week went by without a word from John, and she thought it right as she was heading to pick up her boyfriend from the airport. She had a packet of his favourite biscuits in hand, Jammie dodgers. A part of her felt a tad bit guilty, but she quickly put it aside as she spotted his floppy hair.

Matt beamed at his tiny girlfriend when he saw her, 'Clara!' he exclaimed with a grin and jumped forward, his heart racing as his brown floppy hair dropped over his face. Once he reached her, he wrapped his arms around her, suitcase dropping on the ground as his chin rested on her head.

'I missed you, my Impossible Girl,'

Clara laughed and rolled her eyes, 'And you, my dreamer of improbable dreams,' she sighed, looking up at him.

'How was the holiday?' she mused, intertwining their fingers as they walked towards her car.

Matt shrugged his shoulders, bouncing off of the souls of his feet as his fingers interlocked with hers, 'It was good, lots of sciencey things you wouldn't be interested in,' he mused and once they were in the car and driving home, Matt turned his head to look at her.

'So… My family are in town in about a month, do you fancy meeting them? No pressure, just thought it might be the next step in our relationship,'

Clara turned her head to face him, her hands on the wheel, 'I'll finally get to meet Mr Song?' she mused and nodded, 'Are you sure? You never speak about your dad, I was starting to think you were made in a lab,' she teased, sinking further into the driver's seat.

'He isn't Mr Song, I just chose to take my mother's name. His name last name is Smith,'

He shrugged his shoulders and laughed, 'We don't really get on, not since mum…' he trailed off, referring to his mother's death.

That was how Matt and Clara had met, in a grief session when they were teenagers, although he was a few years older than her. They had become friends at first, and had only started dating six months ago.

Clara drove them to the nearest café as they sat and ordered lunch, 'So, when you say meet all of your family, what exactly do you mean?' she sked, waving a breadstick at his face.

'Is it a special occasion, do I need to buy a new dress?'

Matt shrugged, not really picking up on the smirk she gave him, 'Possibly, yes, well, maybe. You might need a new dress,' he clicked his fingers and then looked down at his food, eating it quickly as he always did.

'Would have preferred fish fingers and custard,' murmured Matt, staring up at her as she gave him a funny look.

'My dad will be there, his sisters Donna and Missy. Please, for the love of god, avoid Missy at all costs. I don't have any uncles, my grandparents will be there from my mother's side and a few cousins. Including my cousin Jenny, she's a lesbian, so I hope you don't mind that,'

Clara arched her eyebrow, 'Why would I mind? Okay, avoid Missy, anyone else I need to know about?' she asked, noticing how distant he was being.

Clara sighed as they finished their lunch.

A month passed by quickly, Clara had picked out the perfect dress. It was deep blue, with a blazer thrown on top. Her hair was done up, as she put on the finishing touches, 'So, any last minute tips?' she asked as she watched him drive towards an overly large house.

'Woah, who lives here?'

Matt cleared his throat awkwardly at his tiny girlfriend, 'My father… He's a um, Doctor… Plastics,' he informed her, growing a bright red colour that his family were apparently rich, 'He doesn't approve of me being a scientist, he wanted me to be a Doctor, like him and my mother,' Matt smiled weakly and jumped out of the car, opening Clara's door for her as her arm looped through his and they walked towards the huge front door together.

'Please ignore the cars next to you,' he muttered, referring to the deep blue coloured Ferrari and a lighter blue Mustang next to it.

Clara laughed, feeling suddenly overwhelmed with Matt's father's wealth. What if she wasn't up to his standards? As soon as they walked in, she could hear cackling and loud music. A young woman instantly came to her side and embraced her.

'Welcome to the family, we're so happy for you both,' she giggled.

Clara simply arched her eyebrow and thought nothing of it until she saw the girl blush and another, older woman jabbed her.

'Oi, Jenny, you never were bright… She's not wearing the ring.'

'Ring?' Clara asked, looking for Matt who seemed to vanish just at the right moment.

'Um, excuse me,' muttered Clara, moving further into the house in search of her boyfriend.

Matt had pretty much ran from Clara, far too scared to show her the ring he had. He planned to propose to her tonight, in front of his family. As Clara walked the long corridors to find him, a tall man wearing shades, a dark hoodie, trousers and Doc Martens bumped straight into Clara, knocking her straight to the floor. The older man immediately reached down to help her, but instantly regretted it when he realised who she was.

Clara.

From a month ago.

They had slept together and he had been trying for a month to forget her.

Oh, fuck.

He had slept with his son's girlfriend.

John's eyes widened when she finally looked at him when she had lifted herself from the ground, 'Oh, fucking hell…'