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Sis n law

My wife is 5ft tall c-cup tits and nice round butt..her sister a couple yrs older is 5'6 b-cup her butt a bit rounder than my wife's..coming home for summer break she asked if she could spend a week with us...my wife agreed and we both took a couple of days off from work...i took three my wife could only get two days..on the day she went back to work i woke up about 10am and went to lay on the couch only wearing my running shorts which is what I sleep in..my sis n law came in and sat across from me..after a little small talk she sat there staring at me..then she kind of shook her body and said hey i bought two new bathing suits could you tell me which one looks better..ok i said and sat up on the couch...she came in wearing the first one..wow she looked awesome her perky tits and big round ass was getting me excited ...ok she said keep this on mind while i change upon returning the Second one was a bit smaller and barely covered her ass..thats the one i told her ..are you sure.. as she spun around too show me every inch...yeah i replied..she then said I'm going to catch some sun in the back yard..as the back door shut i jumped up and ran to the window..she placed her lounger facing the window and laid down on her stomach her ass was making me hard so i went to the restroom window..she started sweating and the blonde hairs above her tail bone were shining in the sun light being fully aroused i pull my dick out and slowly started stroking.. as if she knew i was watching her she would squeeze her cheeks together every now and then which would make me start stroking faster...then she got in the doggy position and arched her back with that i shot my load as i cleaned up..i looked out one more time to see her walking in...reminded me of that movie fast times at ridgemont high..my wife came home from work and asked how was your day...boring i replied with a smile on my face

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