I've been dating my girlfriend for six months and we're getting along well, but in fact, I've been having sex with her mother without her knowledge... It all started about a month ago... I went to visit her while she was out, and her beautiful mother greeted me kindly... As we spent time alone together, I felt a little uneasy, and the atmosphere between me and my mother gradually became more and more like a man and a woman... We had a forbidden encounter without her knowledge...