My sister in law has been teasing me for years now. I was dating her sister, now my wife when she started. I have to admit, I have no complaints. She has a great body. Recently though I have been fantasizing about her. At a wedding we were at, she playfully grabbed me by the neck pretending to choke me saying: "you would do what I told you to do wouldn't you". I smiled and said, yes maam. We both played it off as a joke, but I don't think she was joking. She is married but her husband is out of town a lot. I cannot help but fantasize that she will call asking me to fix something. In my fantasies I see her coming out of the shower with just a towel on when I ring the door bell. She scolds me saying I made her drip water all over the floor. I then get on my knees to dry up the water. She pulls my head closer to her saying that I need you to dry my whole body now with your tongue. I love my wife very much and have been trying to stay away from my sister in law. Last time we had a holiday party, as she was leaving and no one else in the room she bent over to pick up her purse. Her blouse came upon exposing her beautiful breasts. She just looked at me knowing that she had me. Help!