My stepdaughter is a little devil and it's bothering me. She purposely dropped her chopsticks during dinner and made me, her father-in-law, pick them up and showed me her panties, which made me get an erection. When my daughter was cleaning up after dinner, her panties were completely visible through her super miniskirt, so of course I got an erection. The little devil noticed and grabbed my dick while my wife and sister were not looking. She came into the bedroom where my wife and I were sleeping in the middle of the night and said, "I can't sleep because you do that to me," and got into my futon and started playing with my dick again. When I fucked her, she suppressed her voice and felt it. My wife was about to find out, so I went to the bathroom and fucked her from behind.