BACJ-043 Take care of your brother-in-law while you're away

My brother-in-law stayed up late waiting for my sister and never returned. While talking to me to fill my loneliness, we were drawn to each other. I endured for a long time not to go beyond the limit, but my sister-in-law's promise to "only kiss" led to a married life. However, my brother suddenly changed jobs. I'm about to leave my sister-in-law...! When this happens, it's no longer just a kiss! Push down the hesitant sister-in-law and insert it! Immoral sex that cannot be stopped while understanding that it is a sexual quagmire!