She always teased me with short skirts or tight pants when we dated. After we married she had to ease up some on the sexy cloths but only due to daily...life and work. She has been cuckolding me from day one, she never hid the fact that other guys where enjoying her body all the while we dated. And even after we Wed she would have afairs outside our marriage. The office she works in has a dress code, male employees wear suits and ties and the females must wear either skirts or dresses. This is. Still shocked and unable to talk I just nodded yes and tried hard to stay calm. Then I could sense another touch under my skirt, somewhat longer and harder than the first but still reserved. “I wanted to kiss you the first time I saw you. It’s okay, you don’t have to. Only if you want to”, she said softly blowing gentle on my lips. "I want to." I flushed and realised I was gone, seduced by my sister in law, whom I only met 30 minutes ago, practically asking me for permission. With her hand. She hesitated, and then tossed them out. I didn't understand why, because this was the weekly routine. When I was putting the whites in the washer piece by piece, I got to the panties she had just thrown to me. I always turn our undies inside out to wash cleaner, but when I turned hers inside out, they were soaked. I even noticed a heated scent coming from them. I didn't know what to think, but had to find out. I was beginning to get aroused which overtook any suspicions. Later, we were having. I asked him if he was going near to where I live which was about 25 to 30 minutes away, he replied yes but said he would like to go the back way to get out of the traffic, this was ok with me.After a few minutes he was driving along a stretch of road when the rain seemed to get heavier, this made him slow right down so he could see where he was going, it was then when I noticed as he slowly passed the street lights that he had his pants unzipped and unbuckled, he was fondling his cock as he was.