So my wife and I have been together for over 10 years. We love having her sister over to play card games and to drink. Let’s call my sister in-law Sarah.
Whenever Sarah would come over and play card games and drink things usually got perverted and very sexual the more she drank. She would always shoot me these eyes when she is drunk. Those “I want to fuck you eyes”.

It wasn’t uncommon for her to slip a tit out or have no panties on with a mini skirt on. I have seen her naked multiple times in the past. She had one hell of an ass and the softest looking pussy.

One Friday we were all playing cards against humanity and of course drinking. This time my wife got really drunk and started telling Sarah about how she would come into the bathroom at night while a take a piss and she would “help” me out while pissing and then jerk me off some and then we would bend her over and fuck her until I cum in her pussy.

Sarah eyes got huge. She told us that was making her super horny and she wishes she could do that with a guy one day. So we finish our game and start cleaning up. (Mostly me cleaning cause my wife was super drunk) my kitchen is pretty small so I was trying to squeeze by Sarah and she pushes her ass that’s in a short skirt with no panties right into my crotch. Man did that ever turn me on.

So we finished cleaning up and I got my wife into bed. Sarah decided she was going to stay the night. She put on a really sexy nightgown and went to the bedroom across the hall. I laid down in bed and fell asleep.
I woke up around 3:30am to go take a piss like I usually do. I’m standing there pissing and I hear the door open up behind me. I feel a hand reach around and grab my dick. I am still pissing because I drank a lot too. I finished pissing and just like before I start getting jerked off. It’s dark in the bathroom and I can barely see. So I am kinda hard but struggling a little because of the alcohol.
I turn around and grab her waist and start pushing my dick into who I thought was my wife. (They both have the same figure). I keep thinking damn she is tight tonight. So I start thrusting away and I grab her tits as she is bent over and then I realize who I am fucking. It’s Sarah. She has pierced nipple. I was going to pull out but it felt so good. She was so tight and wet. Every thrust into her she would squirt a little. That’s something I wish my wife could do. I am just plowing away on her and I could feel the burning in my balls. I was about to cum. I told Sarah I was about to cum and she told me to keep it in her. I kept going until I came. One shot after another just pumping her pussy full of cum. I was amazed how long my orgasm lasted. She started coming also and was squirting like a hose. I have never had an orgasm that strong in my life. I slowly pulled my dick out of her pussy my cum just dumped out of her. She was still really horny. She told me to clean her up. So I get some toilet paper and get ready to wiper her down and she said “no, with your mouth”. I was caught off guard. She grabs my head and pushes it down to her pussy. I licked my cum from her pussy. It wasn’t as bad as I thought it would be. I’m on my knees just licking away on her pussy and she tells me she is cuming. So I push my tongue into her pussy and it was like someone turned on a hose. She started squirting her juice right into my mouth. She grabbed my head and held my mouth on her pussy. She told me to drink it all. I did. It was sooo hot. My bathroom was a mess. Cum and her squirt all over the floor. I just grab a towel and start wiping the floor up.

I finally get the floor dry and stand up.
Standing there with a rock hard cock. Sarah looks at it and said “looks like you aren’t done yet.” She turns around and bends over again. “Lick my ass”she said. My wife never let me explore her asshole. I dove right in with little licks and pokes to her asshole. It drove her crazy. Then she told me to shove my cock into her ass. I couldn’t believe what a dirty little slut she was. I thrust my cock into her ass. My god it felt so good. About 15 thrusts in I feel my balls tightening up again. I tell her I am about to cum. She told me to cum in her ass. 3 more thrusts and i unloaded another huge load into her. I pull my dick out and she turned around and thanked me for fulfilling her fantasy. I Smiled and smacked her ass. I went to bed and passed out. The next morning Sarah said she pushed the cum out of her ass and masturbated with my cum when she woke up. This is my first time posting. Sorry it was a long story. We have been fucking often.

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