Always willing

I'm 32 married and have 2 children, both my wife and I have good careers and are busy most of the time. My mother-in-law cares for her grandchildren when we are both working, she lives with us since she was widowed 3years ago. My job takes out of town quite a lot and I take any chance I get for sex. It's just sex and I've no intention of ever leaving my wife, mostly one-night stands. Some repeat performances, nothing I consider serious in any case. I always take precautions, only woman I don't take any precautions with is my wife.