Brother-in-law stayed up late waiting for sister who never came back. While talking to me to fill the loneliness, we were drawn to each other. I had been patient for a long time not to go too far, but my sister-in-law's promise of "just kissing" led to a married life. However, my brother suddenly transferred to work. I was about to leave sister-in-law...! When this happened, it was no longer just a kiss! Push down the hesitant sister-in-law and insert it! Immoral sex that can't be stopped while understanding that it is a sexual quagmire!