I have been away from the site and away from most of the wives I was fucking for awhile. My work was in overdrive and one woman asked me to consider being her only fuck. I considered it and decided why not give it a shot it would be like no strings fucking but I wouldn't have to arrange anything just go home each day and fuck her till she was sideways. Anyway that worked for awhile bu eventually fell through and now I'm with my girlfriend while I start to pickup some married women again. I'm over her place when her sister comes over. I only met her a few times she is the younger sister, at 23 but nice body like her sister. This time when she comes over we're all watching TV and they start talking when I overhear the sister say she just moved up to a Double G bra. I'm a breast man above all so immediately I started sneaking peeks that night and trying to picture her big tits popping out of her bra and if her nipples were big and dark like my girlfriends. I started to notice that she was coming over every day that week and her tops were getting looser fitting all the time.