Today is Sunday. My wife and son went to the next town to watch a movie. I was at home alone enjoying my rare day off, when my wife's mom friend, who calls herself Niimura, came to visit me to help with pregnancy. I couldn't resist Niimura's temptations, seeing her beauty and figure... I didn't even know that I could ejaculate so much just with a different partner... My mom friend's amazing technique made me ejaculate! I was helpless and before I knew it, she was sucking out of me... This was the first infidelity of my life, taking place in the short time my wife was away.