They Are The Only Ones That Know

My wife Lynn and her sister Julie ate and have always been close. Lynn is younger then her sis 2 years to be exact. Julie the wild one who has gotten around. We came from a small town so works got around and yes I used her a few times as well. Both are rather short thick girls my wife is a little slimmer but still has. Ice thick thighs and a round ass. Both didn’t have much up top my wife had her tits done so they are a solid C cup. While my wife does it all takes in all 3 holes Julie does as well she is a bit more excited when in it comes to her back door. We had graduated from college and I was dating Lynn. I had stopped by there apartment intending to meet Lynn there. Lynn got stuck with her parents ended up helping them out at their place so she insisted for me to wait at the apartment knowing if I went to meet her at her parents we would get stuck there and Lynn’s words not mine was hang out at my place im really horny and need for us to fuck. Ok sure hell why not so I did just that. Julie was there we where talking and she had on a tank top no bra they have very little so all was visible was her nipples which looked good. Her shorts though where short and loose. We had fucked in the past and i had a chance when Julie dropped the remote between the wall and the couch. Naturally she got down on all 4s and went to get the remote. When she did that I just quietly and quickly slid my middle finger between the fabric and her thigh and instantly felt very warm. She let out a small sigh and I kept that pace. Never said stop I just kept fingering finally wet and hot enough I told her to get up and strip she did naked she hopped on the couch and sucked me off while I finger fucked her we went at it slamming into her and her tight ass was there. Some pre cum and spit and I’m pushing into her ass. I remembered how she enjoys anal and I started to slam as she rubbed herself. Balls slapped her pussy and I blew my load. It was amazing just how fast it started it ended. She wiped up and headed to the shower something I should have done first about 30 minutes later my wife to be showed up and having no clue what had just happened she instantly started kissing me and proceeded to give me a bj. The minute her mouth sucked me a few times she stopped and looked at me then realized her sister was in the shower. Did she get mad yes her sister came out when Lynn was arguing with me Julie and Lynn didn’t talk for a few days but everything was smoothed over after a bit. We married a couple years later and yes Julie has always let me down departs of her body never expected more then sexual pleasure. Not sure if the wife knows and decided to look the other way but are sex life is still hot and heavy occasionally Il slam Lynn and a not clean up and make Julie clean up. I’m sure Julie would be open to letting me have both at the same time not to sure about my wife Lynn. I have tried to bring it up and she shoots it down quickly at that. Lynn instantly got pregnant Julie never did and I never used condoms with either