My Sister-in-Law My Whore

"Oh fuck I'm almost there. Keep fucking me," Mai cried. "Ohhhhhhh fuck yeah."

I had my wife's younger sister bent over her kitchen table, her dress yanked up around her waist, panties down to her knees and one tit out of her dress and I was fucking her from behind with my fat cock.

We had been having an affair for almost a month and I couldn't get enough of her pussy.

"Keep going," she begged, rubbing her clit with one hand as I rammed my cock into her. "I'm your bitch, just fucking use me like a cheap whore."

True, she was my bitch. I had been married to her sister for 15 years, yet me and Mai rarely spoke, we didn't like each other. That was until a month previous when both were drunk, we had ended up fucking in the back seat of my car, and we realised we had one thing in common, we both loved nasty sex. Since then I had been fucking her at every chance I got.

"Urrrrgh, urgh," She was moaning as I kept up the fucking, while I squeezed her tit with one hand and pulled her hair with the other.

"Take that cock, you nasty cunt," I said as I fucked her soaking wet pussy. "All your good for is being fucked like the bitch you are."

We both liked to talk dirty during sex.

"Oh yes," She replied as she shoved her ass back towards me, trying to get as much cock in her cunt as possible. "I'm a bitch, a cheating bitch who can't get enough cock. Arrrrrghgh".

"Am I a better fuck than Zak?" I mocked about her wimp husband. "Do you prefer my cock or his?"

"Yours. Your cock. Just do me. He can't even fuck properly. You're a real man, fuck the shit out of me. Mmmmmmmmmmmph."

I picked up the pace and rammed my cock in and out of the nasty slut. I could tell she was near orgasm by how she was now grinding against her hand as I did her, and I was trying to not cum myself until she did.

"Ohhhhhhh urgh, fuuuuuuck," the bitch grunted as she started to cum. "Fuck me, fuck me, fuck me."

It was too much, and as I squeezed her tit harder as my balls exploded, and I shot my spunk into her married cunt.

"Take that cum, you fucking bitch," I shouted as I flooded her womb. "You are nothing but a nasty cheating whore. Fuck yes."

As we both came together we moaned and groaned as I shot wad after wad of cum into her fuck hole. Eventually, I collapsed on top of her, and we were both breathing heavily, and she was laughing until there was a noise behind us.

"What to fuck," I said looking round to see the back of Zak going out the door. Mai seen him too and quickly jumped, pulled her panties up and ran after him.

"Shit, Zak, come back; I'm sorry, it isn't what you think", she called, running after her husband. I pulled my clothes on and sat down as she returned a minute later.

"Shit" She exclaimed panicking. "He took off, I couldn't stop him. What to fuck will we do?"

To be honest I had no idea what to do. Zak had not only caught me with my dick up his wife in his house, but if he had been there for more than a minute, he probably heard us bad-mouthing him as we fucked. I was sure he must be pissed. He was a skinny little wimp, so I was sure he wouldn't try to challenge me, but I was worried that he would tell my wife, or if Mai and him split up, everyone would know the reason why.

"I don't know," I said to Mai. "I guess we just have to wait to see what he does next. I think I best go because me being here will make things worse."

Mai just nodded, I could see tears in her eyes. Her marriage was over for sure I thought, but that's what she gets for being a slut. As bad as it sounds, I didn't care about her marriage, only my own. As I said, I never really liked Mai as a person, and I disliked Zak, a self-righteous, stuck-up little prick. I loved fucking the slut of course, but that was a different matter. And if she dropped her panties for me so easily, then obviously Zak wasn't giving her what she needed which made me wonder about his manhood as Mai is fucking hot. She is 33 years of age, just over 5ft tall. She has curled black hair just past her shoulders, brown eyes, a dimple on her left cheek and a gorgeous smile. She has a nice body, a little overweight but curves in all the right places. She has a fat ass and large tits and a filthy cunt which she keeps shaved. I didn't regret fucking her at all, I thought as she stood in front of me panicking, not even realising that my sperm was running down the inside of her leg.

We talked a few more minutes and I tried to reassure her, not that it helped much. I left and she told me not to contact her and that she would let me know what happened and if he was going to tell my wife. With that, I left.

I didn't hear from Mai for the next few days so I tried to get on with life as normal. My wife obviously didn't know I had been banging her sister, but she sensed that something was wrong with me and kept asking. I would tell her that I was just tired or some other dumb excuse.

Three days later, I received a text from Mai:

"Call me whenever you are free. Have an update."

As I was alone I immediately called her. She picked up the phone and we exchanged some pleasantries before she informed me of what had transpired.

Zak was devastated that first day; he didn't return for several hours, and when he did return, he was crying and calling Mai a cheating bitch and similar names. She said she didn't try to defend herself but just let him vent his anger until he calmed down. She was sure that he would ask for a divorce. However, he sat down beside her started hugging her and begged her not to leave him. While I never had much respect for Zak, I had none now as the guy obviously didn't even respect himself.

Mai said she was shocked herself and assured him she had no intention of leaving him, but he kept begging. He told her he knew she wasn't happy in the marriage and that he heard us talking about him and knew he couldn't satisfy her. He said he was devastated and broken but understood she needed a man to take care of her needs. He told her he would do anything if she just promised to stay with him, and even though he hated me, he would agree to us continuing with our affair.

She said that he was hugging her and leaning against her, and when he started talking about letting her get fucked by me, she felt his cock getting hard. He started rubbing her tits, and Mai said she wasn't in the mood but couldn't really say no after he saw her letting me do her. So she reached down and opened his jeans and grabbed his small cock and played with it. Zak was excited and was moving his hips back and forward.

"Keep fucking him," he said to his wife as she jerked him off.

She agreed.

Zak then stood up and took his trousers off, and Mai lay back on the sofa, knowing what he wanted. He pulled her panties off and got on top of her and shoved his small penis into her.

She told me his cock was tiny and did nothing for her, but while he was usually very loving during sex, this time, he tried to do her as hard as he could while calling her a filthy cheating slut, a whore and a bitch. He wasn't wrong.

He fucked her for less than a minute then shot his sperm inside her and collapsed on top of her. She rubbed his head and the guy actually started crying again. Please don't leave me, he begged; you can keep fucking him, please. A few minutes later he fell asleep.

Mai told me that the whole thing felt weird, and while he was humiliated and broke, he also was turned on. She was horny herself and so she went to the bathroom and fingered herself to orgasm before calling me.

"So what do you think?" She asked.

"I'm fucking shocked. I really don't know what to say." I was mostly relieved my own wife wasn't going to find out.

"But we keep fucking yeah?"

"I guess so."

It was fucking weird but I was clearly in a good situation.