I did the same for a couple years. When she would visit I would leave the shades almost all the way down leaving about 3-4" open at the bottom. Pretty certain she knew I was spying because she always faced the window when undressing and didnt get ready for bed right away.
A full cup size bigger than the wife. Wife was a 34B, SIL was 34C. Eventually fucked both in the same day but one in the morning other afternoon. Best was once I fucked the wife and then had the SIL suck me few hours later. Made me so hard knowing she was tasting her sister.

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18 Mar 2021 12:49AM