to jilllace :Same for me, i still remember the first pair of hers i ever borrowed from the laundry. I didnt even know how to masturbate properly yet and just sort of humped/grinded/rubbed against them. Once i learned how to masturbate properly... oh boy did i put all her panties to good use over the years, many an orgasm and many a cum load blown thanks to my sister and her panties.