ERDM-169 Watching adult videos with my wife’s mother!! A four-hour encounter where she becomes aroused after seeing her son-in-law’s erection up close and they have intimate sex

I paused the video and stepped out to the convenience store for a moment, but because of the power-saving settings, the screen had turned off. When I came back, my mother-in-law was in the living room folding laundry. As she asked me, Do you want to watch TV? and turned it on, the screen showed the adult video I had been watching. Out of curiosity, my mother-in-law said she wanted to keep watching, so I reluctantly watched it with her. Can my mother-in-law and son-in-law both keep their composure?