On a similar vein, My wifes sister is gorgeously horny, lovely body, small tits, perfect size body, one summer when her sister went on holiday with the parents, I had to house sit their dog during the day, I went into my sister in laws bedroom and found some clean undies she had not taken with her, so I put them on and wore them all around town when I walked their dog, and before going home to fuck the wife, I removed the knickers and had a large handy shandy into my sister in laws pure white knickers, I folded them up and put them back amongst the clean laundry pile.