I still think about it.

At my wife's 40th birthday party we rented a lakehouse and all got pretty drunk, Me, My wife, Her half sister and her husband and 6 of my wife's friends, People were wandering off and not coming back so I assumed they were passing out, I went to bed and could hear my wife, Her sister and a couple others still partying and after a bit it went quiet, I heard someone come inside then heard giggling and heard them go back outside, I looked out the window and from the fire pit light I could see my wife, Her sister and one other girl all headed down to the lake giggling, They were all wearing just towels and when they got close to the water they ditched their towels but were too far away for me to see anything.
I heard splashing and giggling for a bit then it was quiet so I looked back out the window and they were back at the fire and had stoked it up to warm up. I could see all three were still wearing just towels and I got back into bed, After a bit my wife stumbled in, It must have been 2 or 3 in the morning, She whipped off her towel and crawled into bed, I laid there and she started snoring.
After a few minutes I decided I better check and make sure they put the fire out so I looked out the window and the fire was still going but was burned down quite a bit, I could still see her sister sitting by the fire so I wandered out there and could tell right away she was passed out, My wife's sister is ok looking and she got all the boobs out of the two, My wife has small barely B cups and her sister who is 10 years younger has DDD's, I looked at her slumped over snoring and thought "I bet that towel would pop right open with a little tug", I walked around behind her so I could hide if she woke up and reached around giving a little tug on her towel and sure enough it slid right open.
I waited and she just took a deep breath and started snoring again, I walked back around in front of her and looked at her, She is a slimmer built woman but has massive tits, They are super nice since she hasn't had any kids and she was sitting there snoring away, Her legs were outstretched and her feet were crossed but I could see her little racing stripe of bush, I gently took her foot that was on top and started spreading her legs, She grunted and slumped down in the chair then pulled her feet back up and spread her legs passing out, I stood there shocked, I looked around and the house was dark and quiet, I looked back at her, Legs spread, Pink pussy with kinda big inner lips hanging out but they were soft and pink, I looked at her and then knelt in front of her.
I put my hands on her thighs and she didn't move, I slid my hands up and down her thighs and she didn't move, I leaned in and gave her a little kiss on her pelvis, I kissed my way down her racing stripe then leaned in and licked from her taint to her clit, First lick she didn't move but on the second lick she let out a little "mmmm" so I kept going, She has a small clit but I found it and licked it, She took a deep breath and moaned "MmmmHmmm", I kept licking and rubbed her taint with my thumb, She was so wet she was literally dripping on my thumb, I have never seen that but she was so wet she was dripping, Just slumped down breathing heavy as I licked her.
I stood up and pulled my shorts off, I straddled the chair and shuffled forward, I have an 8" dick that's pretty girthy and it was at full attention, I held the shaft and squeezed a huge drop of pre cum out and then pressed it against her lips, She licked her lips and smacked them then I rubbed my knob on her lips and she licked my knob then took a deep breath and sighed, I kept working my knob on her lips and finally she opened her mouth and let me slide it in but then moaned and pulled her head back turning her head to the side. I knelt down again and pressed my knob against her dripping wet pussy and then rubbed it against her lips, She was still wet and She spread her legs and pushed her hips forward a little, I slid my knob and about a 1/4 of my dick in her and she moaned i slowly worked it back and forth massaging her huge tits and slowly worked a little more and a little more in until I was about half way in, She was tight and looked so good, I didn't want to waste any time so I let myself cum in her as she moaned then pulled out and squeezed a huge drop of cum on her mouth, she licked her lips and opened her mouth so I put my dick in and she sucked it for a second before I felt one more little cum and she swallowed like a pro with my dick in her mouth.
I pulled out of her mouth and quickly grabbed my shorts then went inside, In the morning I woke up and went straight to the window, She was still there passed right out kinda sitting half sideways and my wife woke up, I chuckled and said "Uhhh, Your sister is naked on the front lawn", She jumped up and looked out the window then said "Jesus fuck, Go get her", I went down and walked outside, I looked at her and could see my dried cum that had dripped out of her on the towel, I shook her and woke her up, She looked around bewildered and then looked down and said "Oh shit" and wrapped herself up. She bolted inside and i looked over, The neighbour was sitting on his deck, He smiled and held up his coffee cup, I shook my head and went inside laughing.
I still think about the time I got to fuck my sister in law.

By Anonymous

Family CONFESSION

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