"So what do we do now?"
"I don't know..."

"It was a mistake..."
"...I guess..."

He was sitting on the edge of the bed, his back turned to her, staring out of the window.

"It should never happen again... we should just pretend nothing happened and go on with our lives..."
"..."
"Hannah should never know about this... it would crush her..."
"...Yeah.."

Silence...

"God, I want you!"
She looked up at him with big surprised eyes.
"Who am I kidding? The minute I set eyes on you my cock gets rock hard!"
She smiled in a naughty way.
"I guess... she doesn't need to know." she said while he slowly pulled down the sheets that were covering her naked body.
"You're amazing, you know that?" He massaged her big tits, bringing his head close to them to suck on her nipples. She was still hot and wet from earlier. It had just been a quick fuck, impulsive and dirty. She blamed the alcohol, but if she were totally honest with herself, she knew she had herself under control the whole time.
It was horrible of her... Hannah was her big sister and her best friend and she was home in bed with the flu. And here she was having sex with Hannah's husband, her brother in law.

He put his hand between her legs, teasing her clit while he sucked on her tits. She grabbed the bed sheets and moaned. She wanted to feel him inside of her again so bad! Just 30 minutes ago she had dragged him to her bedroom. Their clothes were lying around on the ground. They fell on the bed totally entangled in each other, kissing passionately and immediately started fucking. This time they wouldn't finish as quickly though.
She pushed him beside her on the bed and got on her knees to suck his cock. She started out slow, licking just the head, making him crazy of desire. He kept fondling her breasts with one hand, using the other to try and force her head down on his cock. She resisted for a while, but then gave in. She took his cock in her mouth as far as she could, untill she felt like she needed to gag. She sucked it, teasing it with her tongue while making moaning noises. She tasted his precum and felt her own pussyjuices were running down her legs. She climbed on top of him and guided his penis inside of her. He put his hands on her hips and pushed himself deeper inside of her. She rubbed her tits, roughly squeezing them, knowing he enjoyed the view. "Damn, you are so hot!" he sighed. She let herself drop forward, placing her hands on his shoulders, allowing him to view her big tits shake at every thrust.
She had often noticed him staring at her chest. She had been blessed with a way bigger pair than her sister. She used to curse them, being in the way all the time and not being able to fit into her old clothes. But she had started to appreciate them more when she noticed how popular they made her. It made her feel great when she saw guys stare at them, they almost seemed hypnotized by them.
Suddenly he pushed her on the bed and rolled on top of her. She wrapped her legs tight around him, trying to get him inside of her as deep as possible. He groaned while fucking her hard and she buried her nails in his back. "Fuck me from behind!" she said. He pulled out and allowed her to get on her hands and knees. Instead of penetrating her, he started licking her cunt. She moaned as he sucked her whole labia in. Pushing his tongue deep inside and moving it around. Then he got up and thrust his hard cock deep inside of her. She's screaming as he's fucking her hard from behind, grabbing the sheets tight almost tearing them apart. He reaches around her to get hold of her breasts and squeezes them hard. Then he comes deep inside of her and they roll next to each other on the bed, all sweaty, exhausted but completely satisfied!Â