set her up with one of your well hung friends, once she knows he's well hung she will become more interested and start craving his big cock more and more, trust me it works
in your case you believe its 100%, so if your right the % is probably much as most women that take a lover fuck them more often then they fuck there husbands
Even if its only 85% of married of married women that have cheated on their guy, that's a lot of exciting great sex wives are giving to mostly well endowed guys out there