I just can't seem to stop thinking about my wife's 18 year old sister. Every time I fuck my wife I'm imagining I'm fucking her sweet little sisters pussy and asshole. I masturbate to the thought of her all the time. On several occasions when at my in law's house I would act as if I needed to use the bathroom but always use the one she bathed in. I would pull her used panties out of the hamper and smell them as I would stroke my hard cock. Sometimes I would wrap them around my cock and fuck them until I came right in them and then put them back without her ever finding out. It has gotten so bad that sometimes I can't cum when with my wife unless I'm imagining her sister. She has the perfect little body, size zero, cute little A cup tits, round little ass. I just wish I could fuck her, eat her sweet pussy and have her suck my cock until I cum down her throat. But I am afraid this will always be a fantasy.

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Anonymous

by Anonymous on Feb 19, 2016 at 7:58 AM

My wife is 14 years older than her little sis. When her sis was 15, their mom was killed by a drunk driver, and dad had not been in the pitcher for years. We went to court, and took little sis home as ours. Within 4 months, wehn we were alone, wife at work or somewhere, Little sis was always right by my side. One weekend she and our 2 little ones went to my parents, 350 miles away, for the kids. I had to work, and her little sis did not like my dad. First night, got home, had dinner, took a shower and set down to watch some TV. In comes little sis, a tiny tiny little see through top, and pink panties, setting down right next to me. I had just finished my 3rd beer, and soon we were kissing and petting. Ended up getting those pink panties in my hand, and that top too. I still have both in my tool shed, hidden in my secret stash. I am now in my late 50's and little sis is 43, and we still find time about twice a year to be alone.

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